IEO Olympiad Preparation Class 1 to 5 – Singular and Plural

Singular-plural question paper:

Section A: Singular or Plural?

Instructions: For each sentence, choose the correct form of the noun (singular or plural) to complete the sentence.

  1. The __ of these rare birds is impressive.
  • a) flock
  • b) flocks
  1. His vast collection of antique cars includes several __.
  • a) Mercedes
  • b) Mercede
  1. The committee has two __ in its leadership.
  • a) chairpersons
  • b) chairmen
  1. Many __ of this ancient civilization still remain a mystery.
  • a) artifact
  • b) artifacts
  1. The __ between the two countries has been tense for years.
  • a) diplomacy
  • b) diplomacies
  1. These __ are known for their incredible speed.
  • a) cheetah
  • b) cheetahs
  1. The __ on the wall have been beautifully painted.
  • a) fresco
  • b) frescoes
  1. The __ of this species are found only in a few remote locations.
  • a) specimen
  • b) specimens
  1. Many __ in this forest have been discovered by scientists.
  • a) species
  • b) specie
  1. She bought three __ and planted them in her garden.
    • a) hyacinth
    • b) hyacinths

Section B: Noun Transformation

Instructions: Rewrite each sentence, changing the nouns to their plural form where necessary.

  1. The old book is on the shelf.
  2. My mother-in-law is coming for dinner.
  3. The child loves to play in the sandbox.
  4. The volcano erupted last year.
  5. She wore a beautiful dress to the party.

Section C: Sentence Completion

Instructions: Complete each sentence with the correct form (singular or plural) of the noun in brackets.

  1. The __ (deer) grazed peacefully in the meadow.
  2. The __ (child) in the class received a gold star.
  3. He owns a fleet of __ (ship) that sail around the world.
  4. The __ (mouse) ran across the kitchen floor.
  5. These __ (tooth) need to be examined by a dentist.

Section D: Fill in the Blanks

Instructions: Fill in the blanks with the correct singular or plural form of the noun in parentheses.

  1. The __ (leaf) fell gently from the tree.
  2. The __ (goose) honked loudly as it flew overhead.
  3. There are many __ (child) at the playground.
  4. She collected several __ (seashell) on the beach.
  5. The __ (wolf) howled at the moon.

Section E: Identify the Error

Instructions: In each sentence, identify the noun that is in the incorrect form (singular or plural) and provide the correct form.

  1. The dogs barks loudly in the yard. (Incorrect: _____ / Correct: ________ )
  2. These information is valuable. (Incorrect: _______ / Correct: _______ )
  3. The company needs to hire new staffs. (Incorrect: _____________ / Correct: __________ )
  4. Her hairs are naturally curly. (Incorrect: _________ / Correct: _________ )
  5. Three fishes are swimming in the pond. (Incorrect: _______ / Correct: ________ )

IGKP Preparation Class 1 to Class 5 – Statue & Location Quiz

  1. Standing tall in Rio de Janeiro, this iconic statue of Jesus Christ overlooks the city from the Corcovado Mountain. What is the name of this famous statue?
  2. This colossal statue of a mythical creature guards the entrance to the ancient city of Leshan in China. What is the name of this statue?
  3. In Brussels, Belgium, you can find a statue of a young boy urinating into a fountain. What is the name of this mischievous statue?
  4. The Little Mermaid statue sits on a rock in the harbor of which European capital city?
  5. In Memphis, Tennessee, there’s a statue of a famous rock ‘n’ roll legend known as the “King of Rock and Roll.” Who is this statue dedicated to?
  6. This bronze statue of a charging bull is located in the Financial District of which U.S. city?
  7. In Moscow, a famous statue of a medieval prince and the city’s founder stands in front of the Kremlin. What is the name of this statue?
  8. The Angel of the North is a massive sculpture in England that spreads its wings over a highway. In which English city can you find this artwork?
  9. A famous statue of a lion carved into a rock face can be seen in the Swiss Alps. What is the name of this sculpture?
  10. This statue of a mythical half-lion, half-bird creature guards the entrance to the ancient city of Babylon. What is the name of this statue?

Please leave your answers in comments. Thanks

IGKO Preparation Class 1 to 5 – Location

The Great Barrier Reef, the world’s largest coral reef system, is located in which country?

Machu Picchu, the ancient Incan citadel, is situated in which South American country?

The Taj Mahal, a renowned symbol of love and architecture, can be found in which country?

What country is home to the Sahara Desert, the largest hot desert in the world?

Where is the Amazon Rainforest, the world’s largest tropical rainforest, primarily located?

The Colosseum, a famous ancient amphitheater, is situated in which European city?

The Pyramids of Giza, one of the Seven Wonders of the Ancient World, are located in which country?

Ayers Rock (Uluru), a large sandstone rock formation, is found in which country?

The city of Kyoto, known for its rich history and traditional culture, is in which Asian country?

The Serengeti National Park, famous for its wildlife and annual migration, is located in which African country?

Padma Award Winner List – 2023

Padma Award Winner List – 2023

Padma Vibhushan Recepients List

1. Shri Balkrishna Doshi (Poshumous)OthersGujarat
2. Shri Dilip Mahalanabis (Posthumous)MedicineWest Bengal
3. Mulayam Singh Yadav(Posthumous)Public AffairsUttar Pradesh
4. Shri Zakir HussainArtMaharashtra
5. Shri S M KrishnaPublic AffairsKarnataka
6. Shri Srinivas VaradhanScience & EngineeringUSA
Padma Vibhushan

Padma Bhushan Recepients List

1. Shri S L BhyrappaLiterature & EducationKarnataka
2. Shri Kumar Mangalam BirlaTrade & IndustryMaharashtra
3. Shri Deepak DharScience & EngineeringMaharashtra
4. Ms. Vani JairamArtTamil Nadu
5. Swami Chinna JeeyarOthers-SpiritualismTelangana
6. Ms Suman KalyanpurArtMaharashtra
7. Shri Kapil KapoorLiterature & EducationDelhi
8. Ms Sudha MurtySocial WorkKarnataka
9. Shri Kamlesh D PatelOthers- Spiritualism
Padma Bhushan

Padma Shri Recepients List

1. Dr. Sukama AcharyaOthers- SpiritualismHaryana
2. Ms. Jodhaiyabai BaigaArtMadhya Pradesh
3. Shri Premjit BariaArtDadra and Nagar Haveli
4. Ms Usha BarleArtChhatisgarh
5. Shri Munishwar ChanddawarMedicineMadhya Pradesh
6. Shri Hemant ChauhanArtGujarat
7. Shri Bhanubhai ChitaraArtGujarat
8. Ms Hemoprova ChutiaArtAssam
9. Shri Narendra Chandra DebbarmaPublic AffairsTripura
10. Ms Subhadra DeviArtBihar
11. Shri Khadar Valli DudekulaScience & EngineeringKarnataka
12. Shri Hem Chandra GoswamiArtAssam
13. Ms. Pritikana GoswamiArtWest Bengal
14. Shri Radha Charan GuptaLiterature & EducationUttar Pradesh
15. Shri Modadugu Vijay GuptaScience & EngineeringTelangana
16. Shri Ahmed Hussain & Shri Mohd HussainArtRajasthan
17. Shri Dilshad HussainArtUttar Pradesh
18. Shri Bhiku Ramji IdateSocial WorkMaharashtra
19. Shri C I IssacLiterature & EducationKerala
20. Shri Rattan Singh JaggiLiterature & EducationPunjab
21. Shri Bikram Bahadur JamatiaSocial WorkTripura
22. Shri Ramkuiwangbe JeneSocial WorkAssam
23. Shri Rakesh Radheshyam Jhunjhunwala (Posthumous)Trade & IndustryMaharashtra
24. Shri Mahipat KaviArtGujarat
25. Shri Ratan Chandra KarMedicineAndaman & Nicobar Islands
26. Shri Mahipat KaviArtGujarat
27. Shri M M KeeravaaniArtAndhra Pradesh
28. Shri Areez Khambatta (Posthumous)Trade & IndustryGujarat
29. Shri Parshuram Komaji KhuneArtMaharashtra
30. Shri Ganesh Nagappa KrishnarajanagaraScience & EngineeringAndhra Pradesh
31. Shri Maguni Charan KuanrArtOdisha
32. Shri Anand KumarLiterature & EducationBihar
33. Shri Arvind KumarScience & EngineeringUttar Pradesh
34. Shri Domar Singh KunvarArtChhatisgarh
35. Shri Risingbor KurkalandArtMeghalaya
36. Ms Hirabai LobiSocial WorkGujarat
37. Shri Moolchand LodhaSocial WorkRajasthan
38. MS Rani MachaiahArtKarnataka
39. Shri Ajay Kumar MandaviArtChhatisgarh
40. Shri Prabhakar Bhanudas MandeLiteratureMaharashtra
41. Shri Gajanan Jagannath ManeSocial WorkMahrashtra
42. Shri Antaryami MishraLiterature & EducationOdisha
43. Shri Nadoja Pindipapanahalli MunivenkatappaArtKarnataka
44. Prof(Dr.) Mahendra PalScience & EngineeringGujarat
45. Shri Uma Shankar PandeyScience & EngineeringGujarat
46. Shri Ramesh Parmar & Ms. Shanti ParmarArtMadhya Pradesh
47. Dr. Nalini ParthasarathiMedicinePuducherry
48. Shri Hanumantha Rao PasupuletiMedicineTelangana
49. Shri Ramesh PatangeLiterature & EducationMaharashtra
50. Ms Krishna PatelArtOdisha
51. Shri K Kalyanasundaram PillaiArtTamil Nadu
52. Shri V P Appukuttan PoduvalSocial WorkKerala
53. Shri Kapil Dev PrasadArtBihar
54. Shri S R D PrasadSportsKerala
55. Shri Shah Rasheed Ahmed QuadriArtKarnataka
56. Shri C V RajuArtAndhra Pradesh
57. Shri Bakshi RamScience & EngineeringHaryana
58. Shri Cheruvayal K RamanOthersKerala
59. Ms Sujatha RamdoraiScience & EngineeringCanada
60. Shri Pareshbhai RathwaArtGujarat
61. Shri B Ramakrishna ReddyLiterature & EducationTelangana
62. Shri Mangala Kanti RoyArtWest Bengal
63. Ms K C RunremsangiArtMizoram
64. Shri Vadivel Gopal & Shri MasiSocial WorkTamil Nadu
65. Shri Manoranjan SahuMedicineUP
66. Shri Patayat SahuOthersOdisha
67. Shri Ritwik SanyalArtUP
68. Shri Kota S SArtAndhra Pradesh
69. Shri Sankurathri Chandra SekharSocial WorkAndhra Pradesh
70. Shri K Shanathoiba SharmaSportsManipur
71. Shri Nekram SharmaOthersHimachal Pradesh
72. Shri Gurcharan SinghSportsDelhi
73. Shri Laxman SinghSocial WorkRajasthan
74. Shri Mohan SinghLiteratureJ & K
75. Shri T C SinghPublic AffairsManipur
76. Shri P C SoodLiteratureAndhra Pradesh
77. Ms Neihunuo SorhieArtNagaland
78. Janum Singh SoyLiteratureJharkhand
79. Shri Kushok Thiksey Nawang Chamba StanzinOthersLadakh
80. Shri S SubramanOthersKarnataka
81. Shri Moa SubongArtNagaland
82. Shri P K SundaramSocial WorkTamil Nadu
83. Ms Raveena Ravi TandonArtMaharashtra
84. Shri V P TiwariLiteratureUP
85. Shri Dhaniram TotoLiteratureWB
86. Shri T R UpretiOthersSikkim
87. Dr Gopalsamy VeluchamyMedicineTamil Nadu
88. Dr Ishwar Chander VermaMedicineDelhi
89. Ms Coomi Nariman WadiaArtMaharashtra
90. Shri Karma Wangchu (Posthumous)Social WorkArunachal Pradesh
91. Shri G M ZazArtJammu & Kashmir
Padma Shri

Number Divisibility Rules

Divisibility Rules of whether a number is divisible by 2, 3, 4, 5, 6, 8, 9 and 10

2Last digit in the number is even.14, 102, 118, 560
all end in even numbers, so all are divisible by 2.
3Sum of the digits of the number is divisible by 3.
The sum of the digits of 396 is 3+9+6 = 18 which is
divisible by 3, so 396 is divisible by 3.
4Number formed by the last 2 digits is divisible by 4.Last 2 digits of 1424 is 24, which is divisible by
4, so 1424 is divisible by 4.
5Last digit is 0 or 535, 90, 475
6Number is even and divisible by 3.144 is even and is divisible by 3 (sum of digits 1+4+4 = 9, divisible by 3), so 144 is divisible by 6.
8Last 3 digits divisible by 8 or Last 3 digit is 000Last 3 digits of 83400 is 400 which is divisible by 8. Last 3 digits of 1000 is 000 hence it is divisible by 8
9Sum of the digits of the number is divisible by 9.Sum of the digits of 1485 is 1+4+8+5 = 18
which is divisible by 9, so 1485 is divisible by 9
10Last digit is 090, 120, 680
Number Divisibility Rules

Problems on Divisibility

1. Determine the following numbers which are divisible by 2, using the test of divisibility by 2:

(i) 176, (ii) 221, (iii) 327, (iv) 90, (v) 192

2. Let us consider the following numbers to find whether the numbers are divisible or not divisible by 3:

(i) 176, (ii) 221, (iii) 327, (iv) 90, (v) 192

 3. Is 7248 is divisible (i) by 4, (ii) by 2 and (iii) by 8?

4. Without actual division, find if 235932 is divisible (i) by 4 and (ii) 8.

5. Determine which of the following numbers which are divisible by 6, using the test of divisibility by 6: 42, 144, 180, 258, 156

6. Determine which of the following numbers which are divisible by 9, using the test of divisibility by 9: 

99, 198, 171, 9990, 3411.

संयुक्त व्यंजन

संयुक्त व्यंजन दो व्यंजन के संयुक्त रूप को कहते हैं जैसे- क्ष, त्र, ज्ञ, श्र

संयुक्त व्यंजन की हिंदी वर्णमाला में कुल संख्या 4 है जो की निम्नलिखित हैं।

क्ष – क् + ष = क्ष

त्र – त् + र = त्र

ज्ञ – ज् + ञ = ज्ञ

श्र – श् + र = श्र

संयुक्त व्यंजन से बने शब्दों के कुछ उदहारण इस प्रकार हैं।

क्ष – मोक्ष, अक्षर, परीक्षा, क्षय, अध्यक्ष, समक्ष, कक्षा, मीनाक्षी, क्षमा, यक्ष, भिक्षा, आकांक्षा, परीक्षित।

त्र – त्रिशूल, सर्वत्र, पत्र, गोत्र, वस्त्र, पात्र, सत्र, चित्र, एकत्रित, मंत्र, मूत्र, कृत्रिम, त्रुटि।

ज्ञ – ज्ञानी, अनभिज्ञ, विज्ञान, अज्ञात, यज्ञ, विज्ञापन, ज्ञाता, अज्ञान, जिज्ञासा, सर्वज्ञ, विशेषज्ञ, अल्पज्ञ।

श्र – विश्राम, आश्रम, श्राप, श्रुति, श्रीमान, कुलश्रेष्ठ, श्रमिक, परिश्रम, श्रवण, आश्रित, श्रद्धा, मिश्रण, श्रृंखला।


   प्र = प् + र् + अ,
   द्व = द् + व् + अ,
   ट्र = ट् + र् + अ,
   द्ध = द् + ध् + अ,
   द्य = द् + य् + अ


   क्र = क्रम
   द्व = द्वार, द्वारा
   ट्र = ट्रेन, ट्रैक्टर
   द्ध = युद्ध, क्रमबद्ध, बुद्ध
   द्य = वैद्य, विद्या

Place Value – Greatest & Smallest Numbers – Grade/Class 4

  1. The greatest 4 digit number without repeating the digits is __________________________________
  2. The greatest 4 digit number with repeating the digits is ___________________________
  3. The smallest 4 digit number without repeating the digits is _____________________________
  4. The smallest 4 digit number with repeating the digits is ________________________
  5. The smallest 6 digit number made from digits 7,1,9,0 is ______________________________
  6. The greatest 6 digit number made by 7,1,9,0 is ______________________________
  7. 1 less than the smallest 5 digit number is ____________________________
  8. 1 more than the greatest 5 digit number is ____________________________
  9. 1 less than greatest 6 digit number without repeating the digits is __________________________________
  10. 1 more than smallest 6 digit number without repeating the digits is __________________________________
  11. Write the greatest and the smallest numbers using the digits 1, 0, 3, 5, 9
5 digit number________________________________________________
6 digit number________________________________________________
7 digit number________________________________________________

Please provide your answers in comment box. For any queries on the questions or right answers, reach out to us on contact us over email –

Program Status Meeting

  1. Apart from running regular daily standup meetings with development/engineering team, it is important to run Program Status Meeting involving engineering, program management, product management , sponsor and other important stakeholders.
  2. It is important to use program management plan in program management tools and/or deck.
  3. Purpose of this meeting is to under how we are tracking towards our deadlines. Also align on the program progress, address roadblocks and discuss next steps. This also helps brainstorm solutions to program roadblocks.
  4. The frequency of Program Status Meetings can be weekly, every 2 or 3 weeks or 1 month depending upon program complexity and stakeholder alignment. Ideally Program Status meeting should occur in weekly or every 2 weeks frequency. Decide on frequency at program kickoff/start and maintain and hold these meetings as per frequency
  5. Program Manager should start with Status of Program. Status of Program can be Green, Yellow and Red. If Status of Program is Yellow and Red, mention corrective actions.
  • Green: On schedule, on budget, all good.
  • Yellow: Potential issues with schedule or budget, but both can probably be saved with corrective actions.
  • Red: Serious issues and the project will probably be delayed or have significant budget overrun.
  1. Start the meeting by going over Program Gantt Chart. Program Manager goes over current week program activities planned from Gantt chart and highlights the stage the program is. Program Manager should clearly state whether the program is in Design, Development, Testing , Deployment or Support phase. Program Manager should clearly highlight all dependencies for current and next week. Program Manager should also highlight major deadlines and milestones in the future weeks
  2. Program Manager or Scrum Masters of different teams share their team updates. Updates should include what team did since the last time they met, what team will do till the next time they meet and any blockers or obstacles.
  3. Provide Status Update on RAID items and Capture new RAID items – RAID stands for Risk, Assumption, Issue and Dependency. Program Manager should review and share an update on existing Risks, Assumptions, Issues and Dependencies. Program Managers should also add new Risks, Assumptions, Issues and Dependencies to RAID backlog. Program Manager can also use this time to solve issues/roadblocks and also to remove risks/obstacles that can occur in future.
  4. Program Manager should then go over next steps. Next Steps should highlight next week program activities, steps to resolve roadblocks if any.
  5. After Status meeting is done, program manager should send Program Status update email which should include :
  • Milestone Completed since last status meeting
  • Milestone Missed
  • Milestone Planned till next status meeting
  • Risk log
  • Issue log
  • Action Items

Portfolio – Project Selection and Prioritisation

Portfolio – Project Selection and Prioritisation

As Portfolio / Program Manager, you will have lot of projects in your project backlog. As an effective Portfolio/Program Manager, you should prioritise the right project and select it for further planning and execution.

You need to prioritise projects by scoring/ranking projects on different prioritisation criteria. Some of prioritisation criterias that I recommend portfolio/program managers to prioritise projects are listed below :

  1. Strategic Alignment – You need to see if your projects is aligned to your organisation/department strategic goals and score it accordingly
  2. Financial Criteria – You need to see your projects ROI , Savings and Cost vs Benefit. Based on this , you can score the projects
  3. Risk Criteria – You need to also check how much risk is involved.

You can give different weightage and score for each of the above criteria and then prioritise your projects based on final scores.

This exercise will help convert your project list to prioritised project list. You can start planning and executing projects based on projects ranking in prioritised project list

Also, it is important to revisit the prioritised project backlog on monthly or quarterly basis to make sure you are working right projects which are high value to your organisation at that point of time

Author : Santosh Kumar Singh – Program & Product Management Professional

Olympiad Preparation – Class 3 – Weekly Questions – 3 Oct Week

Addition , Subtraction and Expanded Form Questions for Class 3 Olympiad Aspirants

Parents/Kids, We plan to publish 9 Olympiad Questions each week to prepare your lids for Olympiad.

Please ask your kids to attempt and answer below questions. Kids can add their answer and queries in comments section of this page

Happy Olympiad Preparation to all kids and parents

  1. Solve: 845 + 75 + 70 – 55 – 35.
  2. 7 thousands + 8 tens – 4 ones is equal to _____________
  3. 800000 + 40000 + 8000 + 300 + 60 + 5 is _____________
  4. What is the difference between the face and place value of 5 in the number, 85631?
  5. Solve : 2735 + 5237 – 3756
  6. Replace the question mark with a number given in the options below. ​66 + 37 – 23 = 89 + 5 – ?
  7. The sum of place value and face value of digit 6 in the number 4796232 is
  8. Which one of the following is the short form for. ​50000 + 4000 + 300 + 20 + 1
  9. What number replaces question mark to make the number sentence true ? 4567 – ? = 3451

Punctuation and Capital Letters


There are 14 punctuation marks that are commonly used in English grammar. They are the period, question mark, exclamation point, comma, semicolon, colon, dash, hyphen, parentheses, brackets, braces, apostrophe, quotation marks, and ellipsis.

We will today learn about commonly used punctuations :  period, question mark, exclamation point, comma, semicolon, colon, apostrophe and quotation marks

Sentence Endings

Three of the fourteen punctuation marks are appropriate for use as sentence endings. They are the period, question mark, and exclamation point.

  1. Period or full stop (.) is placed at the end of declarative sentences, statements thought to be complete and after many abbreviations.
  • As a sentence ender: Naman and Vihan went to the market.
  • After an abbreviation: Her son, Chauhan Jr., was born on Jun. 8, 2008.

2. Question mark (?) is used to indicate a direct question when placed at the end of a sentence.

  • When did Naman go to school?

3. Exclamation point (!) is used when a person wants to express a sudden outcry or add emphasis.

  • Within dialogue: “Holy cow!” screamed Jane.
  • To emphasize a point: My mother-in-law’s rants make me furious!

Comma, Semicolon, and Colon

The comma, semicolon, and colon are often misused because they all can indicate a pause in a series.

4.  Comma is used to show a separation of ideas or elements within the structure of a sentence. Additionally, it is used in numbers, dates, and letter writing after the salutation and closing.

  • Direct address: Thanks for all your help, Siri.
  • Separation of two complete sentences: We went to the movies, and then we went out to lunch.
  • Separating lists or elements within sentences: Naman wanted the black, green, and blue pants.

5.  Semicolon (;) is used to connect independent clauses. It shows a closer relationship between the clauses than a period would show.

  • John was hurt; he knew she only said it to upset him.

6. Colon (:) has three main uses. The first is after a word introducing a quotation, an explanation, an example, or a series.

  • He was planning to study four subjects: politics, philosophy, sociology, and economics.

Apostrophe and Quotation Marks

7.  Apostrophe (‘) is used to indicate the omission of a letter or letters from a word, the possessive case, or the plurals of lowercase letters. Examples of the apostrophe in use include:

  • Omission of letters from a word: I’ve seen that movie several times. She wasn’t the only one who knew the answer.
  • Possessive case: Sara’s dog bit the neighbor.
  • Plural for lowercase letters: Six people were told to mind their p’s and q’s.

8. Quotations marks (” “) are a pair of punctuation marks used primarily to mark the beginning and end of a passage attributed to another and repeated word for word. They are also used to indicate meanings and to indicate the unusual or dubious status of a word.

  • “Don’t go outside,” she said.

Single quotation marks (‘ ‘) are used most frequently for quotes within quotes.

  • Marie told the teacher, “I saw Marc at the playground, and he said to me ‘Bill started the fight,’ and I believed him.”page26image3539257184page26image3539392208page26image3539257952page26image3539258288page26image3539402432

Capital Letters:

A capital letters is used:

  • To begin a sentence.
  • To begin a proper noun

We always begin a sentence with a capital letter.

̄All proper nouns begin with capital letters too.
̄The letter ‘I’ when written by itself is always a capital letter.

You and are very good friends.

JAVA and OOPs Concepts

Object Oriented Programming

Object-oriented programming (OOP) is a programming paradigm based on the concept of “objects”, which can contain data and code: data in the form of fields (often known as attributes or properties), and code, in the form of procedures (often known as methods)

Object-oriented programming aims to implement real-world entities like inheritance, hiding, polymorphism etc in programming. The main aim of OOP is to bind together the data and the functions that operate on them so that no other part of the code can access this data except that function.

Java Classes/Objects

Java is an object-oriented programming language.

Everything in Java is associated with classes and objects, along with its attributes and methods. For example: in real life, a car is an object. The car has attributes, such as model and color, and methods, such as drive and brake.

A Class is like an object constructor, or a “blueprint” for creating objects.

What is a Class?

A class is a blueprint or prototype that defines the variables and the methods (functions) common to all objects of a certain kind.

Create a Java Class

To create a class, use the keyword class:

Create a class named “Car” with a variable model and colour:

public class Car{
  string model;
  string colour;

What is an Object?

An object is a representative or specimen of a class. Software objects are often used to model real-world objects you find in everyday life.

Create a JAVA Object

In Java, an object is created from a class. We have already created the class named Car, so now we can use this to create objects.

To create an object of Car, specify the class name, followed by the object name, and use the keyword new:

Car myCar = new Car();

Examples of class and objects

Fruit Apple
Car Volvo
Examples – Class and Objects

Features of OOPs :


Abstraction is the process of exposing the relevant things and hiding the irrelevant details. The easiest way to understand and appreciate this concept of handling complexity is by studying the example of Globe, a model/prototype of earth that is used by students to understand its geography. Globe provides only that information that is required and if too much of information is mentioned in it i.e. streets, lakes etc, it becomes too complex to comprehend. Hence Globe abstracts unwanted information and makes it easy to comprehend the complex earth.

JAVA Abstract Classes and Methods

Data abstraction is the process of hiding certain details and showing only essential information to the user.
Abstraction can be achieved with either abstract classes or interfaces (which you will learn more about in the next chapter).

The abstract keyword is a non-access modifier, used for classes and methods:

  • Abstract class: is a restricted class that cannot be used to create objects (to access it, it must be inherited from another class).
  • Abstract method: can only be used in an abstract class, and it does not have a body. The body is provided by the subclass (inherited from).

An abstract class can have both abstract and regular methods:

abstract class Animal {
  public abstract void animalSound();
  public void sleep() {

From the example above, it is not possible to create an object of the Animal class:

Animal myObj = new Animal(); // will generate an error

To access the abstract class, it must be inherited from another class. Let’s convert the Animal class we used in the Polymorphism chapter to an abstract class:

Remember from the Inheritance chapter that we use the extends keyword to inherit from a class.


// Abstract class
abstract class Animal {
  // Abstract method (does not have a body)
  public abstract void animalSound();
  // Regular method
  public void sleep() {

// Subclass (inherit from Animal)
class Pig extends Animal {
  public void animalSound() {
    // The body of animalSound() is provided here
    System.out.println("The pig says: wee wee");

class Main {
  public static void main(String[] args) {
    Pig myPig = new Pig(); // Create a Pig object


Encapsulation is the mechanism that binds together code and the data it manipulates, and keeps both safe from outside interference and misuse. The data is not accessible to the outside world and only those functions that are wrapped in the class can access it. These functions provide the interface between the object’s data and the program. The insulation of the data from the direct access by the program is called data hiding.
In OOP, code and data are merged into an object so that the user of an object can never peek inside the box. This is defined as encapsulation (Object is a capsule encapsulating data and behavior). All communication to it is through messages (function calls which we use to communicate to the object). Messages define the interface to the object. Everything an object can do is represented by its message interface. Therefore, we need not know anything about what is in the object when we use it.

JAVA Encapsulation

The meaning of Encapsulation, is to make sure that “sensitive” data is hidden from users. To achieve this, you must:

  • declare class variables/attributes as private
  • provide public get and set methods to access and update the value of a private variable

Get and Set

You learned from the previous chapter that private variables can only be accessed within the same class (an outside class has no access to it). However, it is possible to access them if we provide public get and set methods.

The get method returns the variable value, and the set method sets the value.

Syntax for both is that they start with either get or set, followed by the name of the variable, with the first letter in upper case:


public class Person {
  private String name; // private = restricted access

  // Getter
  public String getName() {
    return name;

  // Setter
  public void setName(String newName) { = newName;

Example explained

The get method returns the value of the variable name.

The set method takes a parameter (newName) and assigns it to the name variable. The this keyword is used to refer to the current object.

However, as the name variable is declared as private, we cannot access it from outside this class:


public class Main {
  public static void main(String[] args) {
    Person myObj = new Person(); = "John";  // error
    System.out.println(; // error 


Inheritance is the process by which one class acquires the properties and functionalities of another class. This is important because it supports the concept of hierarchical classification.. Inheritance provides the idea of reusability of code and each sub class defines only those features that are unique to it.

Java Inheritance (Subclass and Superclass)

In Java, it is possible to inherit attributes and methods from one class to another. We group the “inheritance concept” into two categories:

  • subclass (child) – the class that inherits from another class
  • superclass (parent) – the class being inherited from

To inherit from a class, use the extends keyword.

In the example below, the Car class (subclass) inherits the attributes and methods from the Vehicle class (superclass):


class Vehicle {
  protected String brand = "Ford";        // Vehicle attribute
  public void honk() {                    // Vehicle method
    System.out.println("Tuut, tuut!");

class Car extends Vehicle {
  private String modelName = "Mustang";    // Car attribute
  public static void main(String[] args) {

    // Create a myCar object
    Car myCar = new Car();

    // Call the honk() method (from the Vehicle class) on the myCar object

    // Display the value of the brand attribute (from the Vehicle class) and the value of the modelName from the Car class
    System.out.println(myCar.brand + " " + myCar.modelName);

Did you notice the protected modifier in Vehicle?

We set the brand attribute in Vehicle to a protected access modifier. If it was set to private, the Car class would not be able to access it.

Why And When To Use “Inheritance”?

– It is useful for code reusability: reuse attributes and methods of an existing class when you create a new class.

Tip: Also take a look at the next chapter, Polymorphism, which uses inherited methods to perform different tasks.

The final Keyword

If you don’t want other classes to inherit from a class, use the final keyword:

If you try to access a final class, Java will generate an error:

final class Vehicle {

class Car extends Vehicle {

The output will be something like error: cannot inherit from final Vehicle
class Main extends Vehicle {
1 error)


Polymorphism is a feature that allows one interface to be used for a general class of actions. An operation may exhibit different behavior in different instances. The behavior depends on the types of data used in the operation. It plays an important role in allowing objects having different internal structures to share the same external interface. Polymorphism is extensively used in implementing inheritance.
add(int a, int b)
add(int a, float b, int c)
add(int a, int b, float c, double d)
Here different datatypes are being added using the same interface.

Java Polymorphism

Polymorphism means “many forms”, and it occurs when we have many classes that are related to each other by inheritance.

Like we specified in the previous chapter; Inheritance lets us inherit attributes and methods from another class. Polymorphism uses those methods to perform different tasks. This allows us to perform a single action in different ways.

For example, think of a superclass called Animal that has a method called animalSound(). Subclasses of Animals could be Pigs, Cats, Dogs, Birds – And they also have their own implementation of an animal sound (the pig oinks, and the cat meows, etc.):


class Animal {
  public void animalSound() {
    System.out.println("The animal makes a sound");

class Pig extends Animal {
  public void animalSound() {
    System.out.println("The pig says: wee wee");

class Dog extends Animal {
  public void animalSound() {
    System.out.println("The dog says: bow wow");

Remember from the Inheritance chapter that we use the extends keyword to inherit from a class.

Now we can create Pig and Dog objects and call the animalSound() method on both of them:


class Animal {
  public void animalSound() {
    System.out.println("The animal makes a sound");

class Pig extends Animal {
  public void animalSound() {
    System.out.println("The pig says: wee wee");

class Dog extends Animal {
  public void animalSound() {
    System.out.println("The dog says: bow wow");

class Main {
  public static void main(String[] args) {
    Animal myAnimal = new Animal();  // Create a Animal object
    Animal myPig = new Pig();  // Create a Pig object
    Animal myDog = new Dog();  // Create a Dog object

Difference between Procedural and Object Oriented Programming

Procedural Oriented ProgrammingObject Oriented Programming
In procedural programming, program is divided into small parts called functions.
Example code :
#include <stdio.h>
/*this function computes the absolute value of a whole number.*/
int abs(int x)
if (x>=0) return x;
else return -x;
/*this program calls the abs() function defined above twice.*/
int main()
int x,
printf(” x=”);
scanf(“%d”, &x);
printf(“Absolute Value of x is %d. \n”, abs(x));
return 0;
In object oriented programming, program is divided into small parts called objects.
Example code :

class Parrot:
# class attribute
species = "bird"
# instance attribute
def __init__(self, name, age): = name
self.age = age
instantiate the Parrot class
blu = Parrot(“Blu”, 10)
woo = Parrot(“Woo”, 15)
access the class attributes
print(“Blu is a {}”.format(blu.class.species))
print(“Woo is also a {}”.format(woo.class.species))
access the instance attributes
print(“{} is {} years old”.format(, blu.age))
print(“{} is {} years old”.format(, woo.age))
Procedural programming follows top down approach.
Note: A top-down approach is essentially the breaking down of a program to gain insight into its compositional small program (or module) in a reverse engineering fashion.
Object oriented programming follows bottom up approach.
Note : A bottom-up approach is the piecing together of module (or small program) to give rise to more complex program, thus making the original modules of the emergent program.
There is no access specifier in procedural programming.Object oriented programming have access specifiers like private, public, protected etc.
Adding new data and function is not easy.Adding new data and function is easy.
Procedural programming does not have any proper way for hiding data so it is less secure.Object oriented programming provides data hiding so it is more secure.
In procedural programming, overloading is not possible.Overloading is possible in object oriented programming.
Overloading methods lets you define the same method multiple times so that you can call them with different argument lists (a method’s argument list is called its signature)
In procedural programming, function is more important than data.In object oriented programming, data is more important than function.
Procedural programming is based on unreal world.Object oriented programming is based on real world.
Data can move freely from procedure to procedure in the systemObjects can move and communicate with each other through member functions
Examples: C, FORTRAN, Pascal, Basic etc.Examples: C++, Java, Python, C# etc.
Difference between Procedural and Object Oriented Programming


What is a pronoun?

pronoun is a word used instead of a noun or noun phrase. Pronouns refer to either a noun that has already been mentioned or to a noun that does not need to be named .

The most common pronouns are the personal pronouns, which refer to the person or people speaking or writing (first person), the person or people being spoken to (second person), or other people or things (third person).

There are a number of other types of pronouns. The interrogative pronouns—particularly whatwhichwhowhom, and whose—introduce questions for which a noun is the answer, as in “Which do you prefer?”

Possessive pronouns refer to things or people that belong to someone. The main possessive pronouns are mineyourshishersitsours, and theirs.

The four demonstrative pronounsthisthatthese, and those—distinguish the person or thing being referred to from other people or things; they are identical to the demonstrative adjectives.

Relative pronouns introduce a subordinate clause, a part of a sentence that includes a subject and verb but does not form a sentence by itself. The main relative pronouns are thatwhichwhowhomwhat, and whose.

Reflexive pronouns refer back to the subject of a sentence or clause and are formed by adding -self or -selves to a personal pronoun or possessive adjective, as in myselfherselfourselves, and itself.

Indefinite pronouns, such as everybodyeithernone, and something, do not refer to a specific person or thing, and typically refer to an unidentified or unfamiliar person or thing.

The words it and there can also be used like pronouns when the rules of grammar require a subject but no noun is actually being referred to. Both are usually used at the beginning of a sentence or clause, as in “It was almost noon” and “There is some cake left.” These are sometimes referred to as expletives.


Ram is a post man. Ram carries letters.
To make the second sentence sound better we can change the word Ram to he.
Now: Ram is a postman. He carries letters.
The word he is a pronoun and that takes the place of Ram

Adjective : Describing Words

What is an Adjective?
Adjective describes a noun hence they are called describing words.They tell us many things about a noun (shape, size, colour, age, number, taste). They tells us how it looks (shape, size and colour ), smells, sounds, feels or tastes. They also tell how many ( number and age )

tasty pizza

blue triangle

The words tasty and blue are describing words and tells us more about the noun.

They can be placed before nouns or after nouns to describe them.

  • It is a cute puppy.
  • The box is heavy.



Words which name only ONE person, place, animal or thing are called SINGULAR nouns.
Words which name MANY persons, places, animals or things are called PLURAL nouns.
Most singular nouns are made plural by simply putting an -s at the end

There are many plural noun rules

1 To make regular nouns plural, add ‑s to the end.

cat – cats

house – houses

 2 If the singular noun ends in ‑s, -ss, -sh, -ch, -x, or -z, add ‑es to the end to make it plural.

truss – trusses

bus – buses

marsh – marshes

lunch – lunches

tax – taxes

blitz – blitzes

3 In some cases, singular nouns ending in -s or -z, require that you double the -s or -z prior to adding the -es for pluralization.

fez – fezzes

gas –gasses

4 If the noun ends with ‑f or ‑fe, the f is often changed to ‑ve before adding the -s to form the plural version.

wife – wives

wolf – wolves


roof – roofs

belief – beliefs

chef – chefs

chief – chiefs

5 If a singular noun ends in ‑y and the letter before the -y is a consonant, change the ending to ‑ies to make the noun plural.

city – cities

puppy – puppies

6 If the singular noun ends in -y and the letter before the -y is a vowel, simply add an -s to make it plural.

ray – rays

boy – boys

7 If the singular noun ends in ‑o, add ‑es to make it plural.

potato – potatoes

tomato – tomatoes


photo – photos

piano – pianos

halo – halos

8  If the singular noun ends in ‑us, the plural ending is frequently ‑i.

cactus – cacti

focus – foci

9 If the singular noun ends in ‑is, the plural ending is ‑es.

analysis – analyses

ellipsis – ellipses

10 If the singular noun ends in ‑on, the plural ending is ‑a.

phenomenon – phenomena

criterion – criteria

11 Some nouns don’t change at all when they’re pluralized.

sheep – sheep

series – series

species – species

deer –deer

Plural Noun Rules for Irregular Nouns

Irregular nouns follow no specific rules, so it’s best to memorize these or look up the proper pluralization in the dictionary.

child – children

goose – geese

man – men

woman – women

tooth – teeth

foot – feet

mouse – mice

person – people 


What is a verb?

 Verbs are words that describe actions, whether physical or mental.

It expresses the action done by the noun or pronoun in a sentence. Some verbs are; read,
write, eat, drink and sleep

Example Sentences with explanation

Birds fly in the sky.

The word fly tells us what the birds do.

Duggu sleeps till 8 in the morning

The word sleeps says what Duggu does.

The words fly and sleeps are Action or Doing Words. Action Words are called Verbs. Action Words say what persons, animals or things do.



A and AN is used when we speak of one person, place, animal or thing.

AN is used before naming words that begin with the vowel sounds a, e, i, o
or u.

Example: an apple, an egg, an orange, an elephant

A is used before naming words that begin with the consonant sounds b, c, d, f, g, h, j, k, l, m, n, p, q, r, s, t, v, w, x, y, z
Example: a cat, a dog, a goat, a hat

Use of a and an in sentence:

This is an egg.

This is a goat

This is an igloo

This is an orange


What is a noun?

A noun is a word that names something, such as a person, place, thing, or idea. In a sentence, nouns can play the role of subject, direct object, indirect object, subject complement, object complement, appositive, or adjective.

Examples of Nouns

Person :

Abdul Kalam
Abdul Kalam Mahatma-Gandhi

Mahatma Gandhi

Sushant Singh Rajput







Proper nouns vs. common nouns

One important distinction to be made is whether a noun is a proper noun or a common noun. A proper noun is a specific name of a person, place, or thing, and is always capitalized.Does Tina have much homework to do this evening?

Tina is the name of a specific person.I would like to visit Old Faithful.

Old Faithful is the specific name of a geological phenomenon.

The opposite of a proper noun is a common noun, sometimes known as a generic noun. A common noun is the generic name of an item in a class or group and is not capitalized unless appearing at the beginning of a sentence or in a title.The girl crossed the river.

Girl is a common noun; we do not learn the identity of the girl by reading this sentence, though we know the action she takes. River is also a common noun in this sentence.

Place Value of Two Digit Numbers – Quiz

UKG, Class 1 and Class 2

Place Value of Two Digit Numbers – Example

Number  : 3 2

Place Value of 3 is 30

Place Value of 2 is 2

Solve below problem:

  1. The place value of 8  in 8 is ________
  2. The place value of 9 in 90 is _________
  3. The place value of 4 in 54 is _________
  4. The place value of 7 in 67 is _________
  5. The place value of 3 in 31 is _________
  6. The place value of 8 in 84 is _________

Attempt Online Quiz : [ays_quiz id=’4′]

Weekly Current Affairs Quiz: 24 May to 30 May 2021 for Competitive Exams

Weekly Current Affairs Quiz: 24 May to 30 May 2021 for Competitive Exams

Current Affairs

1. New CBI Director

Senior IPS officer Subodh Kumar Jaiswal was on May 25, 2021 appointed as the new CBI director for two years, as per the personnel ministry order. A three-member selection committee led by PM Narendra Modi on May 24, 2021, had shortlisted Jaiswal’s name for the position of director, Central Bureau of Investigation.


2. CNR. Rao

Bharat Ratna Professor CNR Rao was honoured with the International ENI Award 2020, also known as Energy Frontier Award 2020, for his research in renewable energy sources and energy storage. He has been working on hydrogen energy as the only source of energy for the benefit of all mankind


3. Amartya Sen conferred Spain’s Top Award in Social Science


Amartya Sen has been conferred which Spain’s highest prize in social science category for called “Princess of Asturias Award”. It comprises of a Joan Miro sculpture as a symbol, an insignia, a diploma, and a cash prize of 50,000 Euros. His candidature was forwarded by Director General of Casa Asia (Barcelona), Javier Parron

4. Sanjeevani Pariyojana

Haryana Chief Minister Manohar Lal Khattar on May 24, 2021 launched ‘Sanjeevani Pariyojana’, a supervised home care initiative to largely help people with mild to moderate symptoms in rural areas to access quick medical care at home. 

5. Internet Explorer

Microsoft on May 19, 2021, announced that the Internet Explorer 11 desktop browser will be retired on June 15, 2022, for certain versions of Windows 10. Microsoft stated that the future of Internet Explorer on Windows 10 is in Microsoft Edge.

6. Hockey India

Hockey India was honoured prestigious Etienne Glichitch Award on May 21, 2021, for its contribution and work towards the growth and development of Hockey in India. The award was announced by the governing body of the game International Hockey Federation (FIH) during the HockeyInvites conference held virtually as part of its 47th FIH Congress.

7. Drake

Drake won the Artist of the Decade Award at the 2021 Billboard Music Awards. The hip-hop artist brought along his three-year-old son Adonis on stage to accept his award. The artist who dropped his debut album, Thank Me Later, a little over 10 years, has slowly climbed to the top in rap music, becoming one of the most successful rappers in Billboard history. 

8. World Menstrual Hygiene Day

World Menstrual Hygiene Day is observed on May 28 across the world. The theme for this year is: “Action and Investment in Menstrual Hygiene and Health.”
The day aims to change the social stigma associated with menstruation. The date May 28 was chosen to represent the menstrual cycle of 28 days and the menstruation period of 5 days. The day was initiated by the German non-profit WASH United in 2013.

9. PharmEasy has acquired Medlife for an undisclosed amount, the e-pharmacy unicorn said on Tuesday. The deal will make PharmEasy the largest player in the domestic online pharmacy sector, with the combined entity set to serve 2 million customers a month.

10. Vesak , also known as Buddha Jayanti, Buddha Puṇṇamā and Buddha Day, is a holiday traditionally observed by Buddhists and Hindus in South and Southeast Asia as well as Tibet and Mongolia.The festival commemorates the birth, enlightenment , and death of Gautama Buddha in Theravada Tibetan Buddhism and Navayana.

Current Affairs Quiz

1. “Action and Investment in Menstrual Hygiene and Health” is the theme of which special day celebrated on May 28?

[A] World Menstrual Hygiene Day
[B] World Women Health Day
[C] World Personal Health Day
[D] World Hygiene Day

2. Which Indian economist has been conferred with Spain’s top Princess of Asturias Award?

[A] Amartya Sen
[B] Urjit Patel
[C] Manmohan Singh
[D] Montek Singh Ahluwalia

3. PharmEasy – the online pharmacy, is set to acquire which company, which would make it the largest online pharmacy of India?

[A] Medplus
[B] Apollo Pharmacy
[C] Medlife
[D] Medicure

4. Vesak, the Day of the Full Moon in the month of May, is the sacred day of which religion?

[A] Sikhism
[B] Jainism
[C] Buddhism
[D] Islam

5. Who has been appointed as the new CBI Director?
a) Rakesh Asthana
b) YC Modi
c) Subodh Jaiswal
d) SS Deswal

6. Which vaccine manufacturer has said its vaccine has been found to be 100 percent in prevent COVID-19 among adolescents?
a) Moderna 
b) Pfizer
c) J&J
d) Sputnik

7. Which state government has launched Sanjeevani Pariyojana?
a) Gujarat
b) Rajasthan
c) Haryana
d) Madhya Pradesh 

8. Which animal will be re-introduced in India after being declared extinct in 1952?
a) Sumatran rhinoceros
b) Pink-headed Duck
c) Indian Aurochs
d) Cheetah

9. Mount Nyiragongo erupted after almost two decades on May 22, 2021. The active volcano is located within which nation?
a) Democratic Republic of Congo
b) Rwanda
c) Nigeria
d) Niger

10. Which internet browser will be retired for certain versions of Windows 10 by June 2022?
a) Mozilla Firefox
b) Internet Explorer
c) Opera
d) Google Chrome

11. The Military junta of which nation has arrested the President, Prime Minister and Defence Minister?
a) Zambia
b) Mali 
c) Ethiopia
d) Eritrea

12. Which nation forced landed a flight carrying a dissident journalist?
a) Latvia
b) Belarus
c) Lithuania
d) Greece

13. Which Indian sports federation was honoured with the prestigious Etienne Glichitch Award on May 21st?
a) All India Tennis Association 
b) All India Football Federation
c) Badminton Association of India
d) Hockey India

14. Who won Artist of the Decade Award at the 2021 Billboard Music Awards?
a) Lady Gaga
b) Taylor Swift 
c) The Weeknd
d) Drake

States , Union Territories and Official Language of India 2021

States , Union Territories and Official Language of India 2021

There are 28 states in India.

StateOfficialAdditional official
Andhra PradeshTelugu
Arunachal PradeshEnglish
AssamAssameseBengali, Bodo
Himachal PradeshHindiSanskrit[44]
JharkhandHindiAngika, Bengali, Bhojpuri, Ho, Kharia, Khortha, Kurmali, Kurukh, Magahi, Maithili, Mundari, Nagpuri, Odia, Santali, Urdu[45]
Madhya PradeshHindi
MizoramEnglish, Hindi, Mizo
SikkimEnglish, NepaliBhutia, Gurung, Lepcha, Limbu, Manggar, Mukhia, Newari, Rai, Sherpa, Tamang
Tamil NaduTamilEnglish
TripuraBengali, English, Kokborok
Uttar PradeshHindiUrdu
West BengalBengali, Nepali[c]Hindi, Odia, Telugu, Punjabi, Santali, Urdu

There are 8 union territories :

Union territoryOfficialAdditional official
Andaman and Nicobar IslandsHindiEnglish
Dadra and Nagar Haveli and Daman and DiuGujarati, HindiKonkani, Marathi
DelhiHindi, EnglishPunjabi, Urdu[52]
Jammu and KashmirHindi, UrduDogri, Kashmiri
LadakhHindi, English 
LakshadweepMalayalam, English
PuducherryFrench [54] Tamil, EnglishMalayalam, Telugu

Machine Learning Interview/Quiz Questions

Machine Learning Interview/Quiz Questions

Machine Learning Interview/Quiz Questions

Click on Questions to reveal the answer

Which function in Pandas library allows to manipulate data and create new variables?

apply function

Which Python libraries provides advanced random number capabilities?


What is the output of the below Python code? import numpy as np percentiles = [34, 66.37, 45.55, 60, 89] first_subject = np.array(percentiles) print(first_subject.dtype)


Which method is used to find the best fit line for data in Linear Regression?

Least Square Error

State True or False : Linear regression is sensitive to outliers?


R-Squared measures ________________

The correlation between X and Y

R-Squared measures ________________

The correlation between X and Y

States , Union Territories and Capitals of India 2021

States , Union Territories and Capitals of India 2021

There are 28 states in India.

S.NoStates NameCapitalFormed on
1Andhra Pradesh

Amaravati (legislative)
Kurnool (judicial)
1 Nov. 1956
2Arunachal PradeshItanagar20 Feb. 1987
3AssamDispur26 Jan. 1950
4BiharPatna26 Jan. 1950
5ChhattisgarhRaipur1 Nov. 2000
6GoaPanaji30 May. 1987
7GujaratGandhinagar1 May. 1960
8HaryanaChandigarh1 Nov. 1966
9Himachal PradeshShimla25 Jan. 1971
10JharkhandRanchi15 Nov. 2000
11KarnatakaBengaluru (formerly Bangalore)1 Nov. 1956
12KeralaThiruvananthapuram1 Nov. 1956
13Madhya PradeshBhopal1 Nov. 1956
14MaharashtraMumbai1 May. 1960
15ManipurImphal21 Jan. 1972
16MeghalayaShillong21 Jan. 1972
17MizoramAizawl20 Feb. 1987
18NagalandKohima1 Dec. 1963
19OdishaBhubaneswar26 Jan. 1950
20PunjabChandigarh1 Nov. 1956
21RajasthanJaipur1 Nov. 1956
22SikkimGangtok16 May. 1975
23Tamil NaduChennai26 Jan. 1950
24TelanganaHyderabad2 Jun. 2014
25TripuraAgartala21 Jan. 1972
26Uttar PradeshLucknow26 Jan. 1950
27UttarakhandDehradun (Winter)
Gairsain (Summer)
9 Nov. 2000
28West BengalKolkata1 Nov. 1956
States and Capitals of India 2021

There are 8 union territories :

S.NoUnion Territories NamesCapitalFormed on
1Andaman and Nicobar IslandsPort Blair1 Nov. 1956
2ChandigarhChandigarh1 Nov. 1966
3Dadra & Nagar Haveli and Daman & DiuDaman26 Jan. 2020
4DelhiNew Delhi9 May. 1905
5Jammu and KashmirSrinagar (Summer)
Jammu (Winter)
31 Oct 2019
6LakshadweepKavaratti1 Nov. 1956
7PuducherryPondicherry1 Nov. 1954
8LadakhLeh31 Oct 2019
Union Territories and Capitals of India 2021




SECTION 1 – Forming Words Using The Letter Given.

Question 1. Forming Words Using The Letter Given. (4 letter or more than 4 letter words. Kids will have to tell as many words as possible starting with the letter given in 1 minute and spell it.)


Question 2. Forming Words Using The Letter Given. (4 letter or more than 4 letter words. Kids will have to tell as many words as possible starting with the letter given in 1 minute and spell it.)

Answer 2 : Lime, Like, Letter, leapord, lemon, lose,…..

SECTION 2 : Complete The Words Find the missing letter.

Question 1 :

Answer 1 : O

Question 2 :

Answer 2 : G

Question 3 :

Answer 3 : S/M/L

Question 4 :

Answer 4 : CH/ER

Question 5 :

Answer 5 : EE/AR

SECTION 3 : Rearrange The Letters (Form a new word using the same letters as in the given word.)

Question NoQuestionAnswer

SECTION 4 : Opposites

Question NoQuestionAnswer

SECTION 5 – Fill In The Blanks with ‘a’, ‘an’ or ‘the’

1) In the zoo, I saw _____ elephant.

2) I need _____ bottle of water.

3) The book is on _____ table.

4) I want _____ burger.

5) My dad gave me _____ umbrella

Ans: 1) an 2) a 3) the 4) a 5) an

SECTION 6 : Masculine / feminine (If Masculine is given, kids will have to tell the feminine form and vice-versa.)


SECTION 7 : Plural / Singular (If singular is given, kids will have to tell the plural form and vice-versa.)


SECTION 8 : Match the words which go together.


Answers: Bedroom, Breakfast, Cooldrink, someone

SECTION 9 : Memory test

1. How may pens were there ?

2. What was the colour of the crayon?

3. How many sharpeners were there?

4. What was the shape of the pencil box?

Answer: 1) five 2) pink 3) 10 4) rectangle

SECTION 10 : Word Application

1) I like to ____ (play/playing) in the garden.

2) The sun _____ (rose/rises) in the east.

3) I will ____ (go/gone) to school tomorrow.

4) The train ___(stopped/stop) at the station.

Ans: 1) play 2) rises 3) go 4) stopped

SECTION 11: Find the word with the given meaning.

1) in greater quantity
a) more b) less
2) feeling of joy
a) sad b) happy
3) a blow with the foot. a) punch b) kick

Answer : 1) more 2) happy 3) kick

SECTION 12 : Listening Comprehension skills

An audio will be played and then question will be asked.

For eg. Thirsty crow audio is played and question based on that story will be asked.

1. How was the day in the story?

2. What was the crow searching for?

3. Why the crow couldn’t drink the water?

4. What did the crow put inside the pot?

5. What happened when the crow put pebbles in the pot?

Answer :

1. It was a hot day.

2. Water

3. Because there was very little water in the pot.

4. Pebbles

5. The water came up.

Mental Ability – Competitive Exam Preparation – Number Series by adding fixed number – NTSE, NCO, NSO, IMO and other Competitive Exams

Mental Ability – Competitive Exam Preparation – Number Series by adding fixed number – NTSE, NCO, NSO, IMO and other Competitive Exams

The sequence or series of numbers created by adding fixed number :

  1. 5 , 7 , 9 , 11 , 13 etc – Number sequence obtained by adding fixed number 2
  2. 6, 11, 16, 21, 26 etc – Number sequence obtained by adding fixed number 5

Similarly number sequence can be obtained by adding two fixed numbers alternatively or by adding two fixed numbers after repeated series. Example below:

5, 7, 10,12, 15, 17, 20 etc – This number sequence is formed by adding 2 and 3 alternatively

5, 6, 7, 9, 11, 13, 16, 19, 22 etc – This number sequence is formed by adding fixed number 1 , 2 and 3 after regular interval i.e after 3 numbers

Below is some questions to practise this. Please leave your answers in comment box on this page or write to us on

We will revert back with right answers at the earliest

Complete the sequence by adding fixed numbers

  1. 1234, 1236, 1238, _____, 1242, 1244, _____
  2. 1400, 1500, ______ , 1700, 1800, 1900, ______
  3. 3, 9, 15, _____, 27, 33, 39, ______, 51
  4. 8, 17, _____, 35, 44, _____, 62
  5. 10, 15, 25, 35, 40, 45, 55, 65, _____ , 75, 85, ______
  6. 6, 9, 15, 21, 24, 27, 33, ______ , 42, ______
  7. 3, 5, 7, 10, 13, 16, 18, 20, _____, 25, ______, 31
  8. 10, 20, 50, _____, 90, 100, 130, 160, _____, 180, 210, 240
  9. 1000, 1200, 1600,________, 2200, 2400, 2800, 3200
  10. 86, 96, 116, 136, 166, ______, 236, 276, 326, 376

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Weekly Current Affairs Quiz: 10 May to 16 May 2021 for Competitive Exams

Weekly Current Affairs Quiz: 10 May to 16 May 2021 for Competitive Exams

Current Affairs

  1. Dr. Tahera Qutbuddin has become the first person from India to win the prestigious Sheikh Zayed Book Award.  The Mumbai-born professor won the honour for her book ‘Arabic Oration: Art and Function’, which was published by Brill Academic Publishers of Leiden in 2019. 

2. Nagaland Conservationist Y Nuklu Phom was named the winner of ‘Whitley Awards 2021′, also known as the Green Oscar, donated by MAVA Foundation on May 12, 2021 for his efforts in establishing a biodiversity peace corridor in Nagaland.

3. Covaxin
The Subject Expert Committee (SEC) has approved Bharat Biotech’s Covaxin for phase 2 and 3 human clinical trials on 2 to 18-year-olds.  

4. Florence Nightingale was an English social reformer, statistician and the founder of modern nursing. Nightingale came to prominence while serving as a manager and trainer of nurses during the Crimean War, in which she organised care for wounded soldiers at Constantinople.[3] She gave nursing a favourable reputation and became an icon of Victorian culture, especially in the persona of “The Lady with the Lamp” making rounds of wounded soldiers at night.[4][5]

5. Pfizer Covid-19 Vaccine

The United States Food and Drug Administration on May 10, 2021, gave the emergency use approval to Pfizer-BioNTech Covid-19 vaccine for the children in the 12-15 age group. The US government aims at setting up shots for many before the beginning of the next school year.

6. Bennu
NASA’s OSIRIS-REx spacecraft began its historic 2-year mission back to Earth after collecting samples from asteroid Bennu on May 10, 2021. This is NASA’s first asteroid sample return mission and it carries a generous amount of material collected from the near-Earth asteroid.

Current Affairs Quiz

1. Who has become the first person from India to win the prestigious Sheikh Zayed Book Award?
a) Amrita Pritam
b) Jhumpa Lahiri
c) Khaled Hosseini
d) Tahera Qutbuddin

2. India’s Y Nuklu Phom has been named the winner of ‘Whitley Awards 2021′ for his conservational efforts in which Indian state?
a) Meghalaya 
b) Nagaland
c) Sikkim
d) Manipur

3. The Subject Expert Committee (SEC) has approved which COVID-19 vaccine for phase 2 and 3 human clinical trials on 2 to 18-year-olds?
a) Covaxin
b) Covishield
c) J&J
d) Sputnik

4. Which among the following COVID-19 variants was first detected in India in October 2020?
a) B.1.1.7
b) B.1.351
c) B.
d) B.1.617

5. Which Indian state on May 12, 2021 reported resurgence of the African Swine Fever?
a) Madhya Pradesh
b) West Bengal
c) Uttar Pradesh
d) Meghalaya 

6. Which nation will become the most populated country by 2027, as per a UN report?
a) India
b) US
c) Japan
d) Pakistan 

7. Which nation will be the world’s fastest-growing major economy in 2022, as per the UN?
a) China
b) US
c) UK 
d) India

8. Who was the founder of modern nursing?
a) Mother Teresa
b) Elizabeth Blackwell
c) Clara Barton 
d) Florence Nightingale

9. Which nation has approved Pfizer’s vaccine for children in the 12-15 age group?
a) US
b) UK 
c) India
d) France

10. NASA’s OSIRIS-REx spacecraft has begun its 2-year journey back to Earth after collecting samples from which asteroid?
a) Ceres
b) Juno
c) Vesta
d) Bennu

Weekly Current Affairs Quiz: 3 May to 9 May 2021 for Competitive Exams

Weekly Current Affairs Quiz: 3 May to 9 May 2021 for Competitive Exams

Current Affairs

Mayflower 400
Mayflower 400 is the world’s first Artificial Intelligence Ship, built by a team of researchers from the marine research organization ProMare in collaboration with IBM. It is an unmanned 15-m-long trimaran that weighs nine tons and is a completely autonomous ship. The ship is set to sail on a transatlantic voyage. It will track aquatic mammals, analyze plastic in the water and study marine pollution.

IDBI strategic disinvestment
The Cabinet Committee on Economic Affairs on May 5, 2021 gave its approval for the strategic disinvestment and transfer of management control in IDBI Bank Ltd. The cabinet was chaired by Narendra Modi.

Sauropods fossil in Meghalaya

The researchers have identified the fossil bone fragments of the long-necked dinosaurs, known as Sauropods from an area around West Khasi Hill Districts in Meghalaya. The fossil dates back to about 100-million years.

NASA’s Parker Solar Probe

NASA’s Parker Solar Probe, during a brief swing by Venus in July 2020, detected a natural radio signal from Venus’ atmosphere. The Parker Solar Probe was launched in 2018 as a solar mission to analyze the Sun.

Oldest human burial in Kenya, Africa

Archaeologists have discovered the oldest human burial in Africa that dates back to 78,000 years at a cave site called Panga ya Saidi near the Kenyan coast. The remains belong to a 2-3 years old toddler who looks to have been laid to rest with a pillow. 

Current Affairs Quiz

1. What is the name of the world’s first Artificial Intelligence ship?
a) Sunflower 40
b) Earth 2030
c) Mayflower 400
d) Seafarer 66

2. Cabinet has given its approval for strategic disinvestment in which bank?
a) SBI
b) BOI
d) BOB

3. Former Lok Sabha MP and Union Minister Ajit Singh passed away in the morning on May 6, 2021 at the age of 86. He was the chief of which among the following parties?
a) RLD
b) JD(U)
c) RJD
d) LJP

4. Former Union Minister and Governor Jagmohan passed away on May 3, 2021. He had served as the Governor of which state for two terms?
a) J&K
b) Delhi
c) Goa
d) None of the Above

5. India has launched a comprehensive partnership on migration and mobility with which nation?
a) UK
b) US
c) Canada
d) France

6. Who has been appointed as the deputy governor of RBI?
a) TN Rao
b) T Rabi Sankar
c) Venugopal Menon 
d) Shashi Iyer

7. The President of which African nation has declared a state of emergency?
a) Ghana
b) Zambia
c) DRC
d) Niger

8. Researchers have discovered 100 million-year-old bones of Sauropods in which Indian state?
a) Mizoram
b) Andhra Pradesh
c) Tripura
d) Meghalaya

9. NASA’s Parker Solar Probe has detected Natural Radio Emission from which planet’s Atmosphere?
a) Mars
b) Venus
c) Mercury
d) Saturn

10. The US FDA is likely to authorise which vaccine for young adults aged above 12 years?
a) Pfizer
b) Moderna
c) J&J
d) AstraZeneca

11. Which nation’s cricket team has become the top-ranked ODI team in the world?
a) India
b) Australia
c) New Zealand
d) None of the Above

12.  The oldest human burial site has been discovered in which country?
a) Kenya
b) Egypt
c) Brazil
d) Vietnam 

Ascending and Descending Numbers for Olympiad Exam – IMO etc – Class 3

Ascending and Descending Numbers for Olympiad Competitive Exam – IMO etc – Class 3

  1. Which of below options shows number is descending order ?

a) One Hundred b) One Hundred Ten

2. Which of below options shows number is ascending order ?

a) One Hundred b) One Hundred Ten

Use below number list to answer questions 3 – 8

Number List for Questions 3 -8

3. Which is largest number ? Use Number List above for Questions 3 – 8

a. 9909b. 9978
c. 9878d. 9990

4. Which is smallest number ? Use Number List above for Questions 3 – 8

a. 5500b. 7900
c. 5678d. 8978

5. Which is 3rd largest number ? Use Number List above for Questions 3 – 8

a. 9909b. 9978
c. 9905d. 9878

6. Which is 4rd smallest number ? Use Number List above for Questions 3 – 8

a. 5678b. 8978
c. 8900d. 8999

7. Which numbers are middle numbers in the list ? Use Number List above for Questions 3 – 8

a. 8999, 9000b. 9088, 9089
c. 8999, 9089d. 9089, 9788

8. What is the difference between second largest and second smallest number ? Use Number List above for Questions 3 – 8

a. 2009b. 209
c. 1000d. None of above

9. Find the missing number in number list arranged in descending order

8915, ______ , 8519 , 8159

a. 8965b. 8695
c. 8515d. 8198

10. Find the missing number in number list arranged in ascending order

4324 , 4432 , ________ , 4532

a. Four Thousand Five Hundred Fortyb. Four Thousand Four Hundred Thirty
c. Four Thousand Five Hundred Twentyd. Four Thousand Three Hundred Thirty

Please type your answers in comment box. We will check and revert back to you.

Human Body Blood Notes for Competitive Exams

Human Body Blood Notes for Competitive Exams

Blood is fluid connective tissue

  • pH of blood is 7.4
    • pH is a scale used to specify the acidity or basicity of an solution
    • pH of 7 is neutral
    • pH below 7 is acidic
    • pH above 7 is basic

Hence blood is basic

Quantity of blood is around 7-10% of body weight. Human body contains 5-6 litres of blood

  • Blood consists of two parts
    • Plasma
      • Plasma is 55%
      • Plasma contains 90% – Water, 10% – Protein, Salts and Glucose
      • Plasma is liquid part of blood.
      • Plasma transports oxygen, carbon di oxide, digested food and excretory material
    • Blood Cells / Corpuscles
      • Blood Cells / Corpuscles is 45%
      • Blood cells is divided into – RBC , WBC and Platelets
      • RBC – Red Blood Cells / Corpuscles
        • Biological Name of RBC is Erthrocytes
        • RBC has no nucleus and carry oxygen
        • RBC is present in large quantity
        • For every 600 RBC, there is 1 WBC i.e. RBC Count :WBC Count is 600:1 ratio
        • RBC is formed in bone marrow
        • RBC dies in spleen and liver.
        • SpleenLiver
        • Graveyard of RBC is liver
        • Lifespan of RBC is 90 – 120 days
          • Haemoglobin is part of RBC
          • Haemoglobin contains Haemo ( Iron – Fe 2+ ) and globin ( protein ). Blood is red in colour due to Iron in Haemoglobin. Globin helps combine oxygen and carbon di oxide and carry oxygen.
          • Diseases associated with haemoglobin is anemia and jaundice
      • WBC – White Blood Cells / Corpuscles
        • Biological Name of RBC is Levcocytes
        • WBC is formed in bone marrow
        • WBC dies in blood
        • Lifespan of WBC is 3 – 5 days
        • Quantity of WBC is less than RBC. RBC Count :WBC Count is 600:1 ratio
        • WBC forms antibodies. Antibodies protect us from diseases and infections.
        • AIDs/HIV causes deficiency of WBC
      • Platelets
        • Biological Name of Platelets is Thrombocyte
        • Platelets are present in human body and mammals
        • Platelets is formed in bone marrow
        • Platelets dies in blood
        • Lifespan of Platelets 3 – 5 days
        • When bleeding happens , clot is formed
        • Platelets help in blood clotting
        • Due to Dengue , platelets count is reduced

Weekly Current Affairs Quiz: 26 April to 2 May 2021 for Competitive Exams

Weekly Current Affairs Quiz: 26 April to 2 May 2021 for Competitive Exams

Oscar Winners Announced

The winners were announced at the 93rd Annual Academy Awards. The awards made history by giving Chloe Zhao the best director award, making her the first woman of color and 2nd woman director ever to win the Oscars. Anthony Hopkins won the award for the best actor and McDormand won the best actress for ‘Nomadland’.

1. Who has become the first woman of colour to win the Oscar for Best Director?
a) Thomas Vinterberg
b) Lee Isaac Chung
c) Chloe Zhao
d) Emerald Fennell

2. Which film has won the Oscar for ‘Best Picture’ at the 93rd Academy Awards?
a) Nomadland 
b) Promising Young Woman
c) The Trial of the Chicago 7
d) Minari

3. Asian Development Bank has projected India’s GDP growth to be how much in FY21?
a) 12 percent
b) 10.7 percent
c) 11 percent
d) 9.8 percent

4. Former Attorney General of India Soli Sorabjee passed away on April 30, 2021. When was he first appointed as attorney general of India?
a) 1977
b) 1971
c) 1989
d) 1991

5. The Lieutenant Governor of which Union Territory will now have primacy over the elected government?
a) J&K
b) Delhi
c) Puducherry
d) Chandigarh

6. Where will ICC World Test Championship Final 2021 take place?
a) The Oval
b) Hampshire Bowl
c) Edgbaston 
d) Lord’s

7. What is Bharat Biotech’s revised Covaxin price for states?
a) Rs 500
b) Rs 400
c) Rs 450
d) Rs 300

8. What is SII’s new vaccine price for state governments?
a) Rs 200
b) Rs 150
c) Rs 300
d) Rs 350

9. Which e-learning platform has been featured in Time Magazine’s 2021 list of 100 most influential companies?
a) Edukart
b) Unacademy 
c) Toppr
d) BYJU’s 

10. Which state government has planned to provide ten lakh tap water connections in FY 2021-22?
a) Gujarat
b) Madhya Pradesh
c) Uttar Pradesh
d) Rajasthan

11. Justice Rajesh Bindal has been appointed as the Acting Chief Justice of which High Court?
a) Madras
b) Bombay 
c) Calcutta
d) Delhi

12. What is the name of China’s first Mars Rover?
a) Shiang
b) Zhurong
c) Zhing
d) Huo Xing

Current Affairs

13. Ayushman Bharat Diwas was celebrated on April 30


The 93rd Academy Awards (Oscar) 2021 was announced: –

  • Best Film: Nomadland
  • Best Director: Chloe Zhao (for the film “Nomadland”
  • Best Actor: Anthony Hopkins (for the film “The Father”)
  • Best Actress: Frances McDormand (for the film “Nomadland”)
  • Best Animated Film: Soul
  • Best International Feature Film: Another Round (From Denmark)

15. World Intellectual Property Day” was observed on 26 April

16. During the Covid-19 transition, which train has been started by the Indian Railways for the timely supply of oxygen in the country?– Oxygen Express by Railway Minister: Mr. Piyush Goyal

17. Who has been chosen by UNICEF to encourage people to be vaccinated against deadly diseases?– David Beckaham

18. To meet the increasing demand for oxygen due to COVID-19, which oxygen manufacturing plant has been ordered to be restarted?– Vedanta ( ‘Vedanta Oxygen Manufacturing Plant’ is located in Tuticorin, Tamil Nadu )

19. Which Indian cricketer has been appointed as brand ambassador by Japanese sports brand “ASICS”?– Ravindra Jadeja

20. Finance Minister Nirmala Sitharaman Inaugurated on April 27  India’s First 3D Printed House At IIT Madras

Crack Maths Olympiad – Calendar Problem – Class 1 and 2

Maths Olympiad – Calendar Problem – Class 1 and 2

1. Duggu celebrates his birthday on Wednesday in June. Which of below dates is surely not Duggu’s birthday ?

June 20XX
A. 7 JuneB. 14 June
C. 24 JuneD. 28 June

2. Which day is first day of May 20XX ?

April 20XX

A. MondayB. Saturday
C. FridayD. Sunday

3. Which day is last day of October 20XX ?

November 20XX
A. SundayB. Monday
C. WednesdayD. Tuesday

4. Bank is closed on third Saturday of every month. Which day will be back closed in July 20XX

July 20XX
A. 18 JulyB. 25 July
C. 11 JulyD. 10 July

5. Dakshu has soccer classes on Saturday on 1st Week and on Monday of 3rd week of month. Which all days in April 20XX will Dakshu go for Soccer class ?

April 20XX
A. 11 April, 20 AprilB. 4 April, 20 April
C. 4 April, 13 AprilD. 6 April, 18 April

6. Duggu has Science Olympiad on 4th August and Math Olympiad 10 days after science olympiad. On which day will Math Olympiad happen ?

August 20XX
A. 11 AugustB. 12 August
C. 13 AugustD. 14 August

7. Dakshu went for Piano classes on 9th September. Dakshu goes for Drawing classes after exactly 2 weeks of Piano classes ? When will Dakshu go for Drawing classes

September 20XX
A. 22 SeptemberB. 24 September
C. 23 SeptemberD. 16 September

Weekly Current Affairs Quiz: 19 April to 25 April 2021 for Competitive Exams

Weekly Current Affairs Quiz: 19 April to 25 April 2021

1. Idriss Déby, one of Africa’s longest-serving leaders passed away on April 20th. He was the President of which nation?
a) Libya
b) Niger
c) Chad
d) Nigeria

2. When will COVID-19 vaccine registration begin for everyone above 18 years?
a) April 25th
b) April 26th
c) April 27th
d) April 28th

3. Which film won ‘Best Foreign Language Feature at the Moscow International Film Festival 2021?
a) Thappad
b) Uyare
c) Asuran
d) Puglya

4. Which state government has released first installment worth Rs 672 crores under Jagananna Vidya Deevena Scheme for students?
a) Andhra Pradesh
b) Telangana
c) Karnataka
d) Madhya Pradesh

5. Which Indian weightlifter has created a new world record in Clean and Jerk?
a) Mirabai Chanu
b) Jeremy Lalrinnunga
c) Jhili Dalabehera
d) S Sathish Kumar

6. Who has become first Indian-American Associate Attorney General of the United States?
a) Neera Tanden
b) Vivek Murthy
c) Nikki Haily
d) Vanita Gupta

7. Which country plans to return to Moon with ‘Luna 25’ after 45 years?
a) Russia
b) Japan
c) US
d) China

8. Which country has launched its first-ever mega food park and food processing unit in India?
a) Germany
b) Spain
c) Italy
d) Japan

9. Which nation has cancelled its state government’s deal to join China’s Belt and Road initiative?
a) Japan
b) France
c) Australia
d) South Korea

10. India finished at which position at the Asian Wrestling Championship 2021?
a) Second
b) Third
c) Fourth
d) Sixth

11. Which vaccine manufacturer has decided to provide COVID-19 vaccines only through government channels in India?
a) Pfizer
b) Moderna
c) Sputnik 
d) J&J

12. US House has voted to make which city as the 51st state of US?
a) Washington DC
b) New York
c) San Francisco 
d) Los Angeles

National Level Science Talent Search Examination- NSTSE – CLASS 2 QUESTION 2021 – PART 3

National Level Science Talent Search Examination- NSTSE – CLASS 2 QUESTION 2021 – PART 3

Look at the picture and answer question no. 21 – 23.

21. Who wished to have a pet ?
(A) Maggie (B) Radha
(C) Sony (D) Teena

22. Harry believes that a cat will be
(A) a burden (B) a great worry
(C) a good friend (D) an experience

23. What does pets teach us ?
(A) To tease animals (B) To respect all living beings
(C) To grow plants (D) To fight with each other

24. What kind of clothes are made from the fibre that we get from the figure shown below ?

(A) Cotton (B) Silk
(C) Woollen (D) Nylon

25. Which animal provides us leather ?options

26. Which of these cannot grow ?

27. Which of these become a mango in mango tree

(A) A root (B) A flower
(C) A leaf (D) A twig

28. Animal that is hunted and killed for food is called prey. which of the below animal is prey for frog ?

29. Identify a fruit ?

30. Tina is listening to her favourite songs. She is using her sense of

(A) sight (B) touch
(C) smell (D) hearing

National Level Science Talent Search Examination- NSTSE – CLASS 2 QUESTION 2021 – PART 1

National Level Science Talent Search Examination- NSTSE – CLASS 2 QUESTION 2021 – PART 1

01. Which option represents the grouping ?

02. Mona wrote a correct calculation. Then she covers two same digits with same stickers ?


Which digit is under the stickers ?

(A) 6 (B) 9 (C) 7 (D) 8

03. A television show is going to start 60 minutes later. What time will the television show start according to the time given below.

(A) 9:15 (B) 8:00 (C) 9:30 (D) 9:45

04. Which set of number bonds is wrong ?

(A) Q (B) S (C) P (D) R

05. Which is the smallest 2-digit number that can be formed with the digits 8, 3, 1 ?

(A) 81 (B) 31 (C) 18 (D) 13

06. A man bought 4 pairs of skirts at 200 each. Find the total amount of money he spent.

(A) 805 (B) 800 (C) 850 (D) 600

07. The cat goes up 3 steps each time the rabbit goes down 2 steps. On which step do they meet ?

(A) 3rd (B) 4th (C) 5th (D) 6th

08. There are 33 fruits in a bag. 16 of them are oranges and the rest are guavas. How many more guavas than oranges are there in the bag ?

(A) 1 (B) 2 (C) 16 (D) 17

09. I am fifth from left but seventh from the right in the queue. How many people are there in the queue ?

(A) 8 (B) 11 (C) 9 (D) 10

10. What is the mass of the bunch of grapes ?

(A) 300 g (B) 350 g (C) 35 kg (D) 350 kg


Arm Ball A ball bowled by a slow bowler which has no spin on it and so does not turn as expected but which stays on a straight line (“goes on with the arm”)

Asking rate – The runs required per over for a team to win – mostly relevant in a one-dayer

Ball Red for first-class and most club cricket, white for one-day matches (and, experimentally, women once used blue balls and men orange ones). It weighs 5.5 ounces ( 5 ounces for women’s cricket and 4.75 ounces for junior cricket)

Ball Tampering The illegal action of changing the condition of the ball by artificial means, usually scuffing the surface, picking or lifting the seam of the ball, or applying substances other than sweat or saliva

Bat-Pad A fielding position close to the batsman designed to catch balls which pop up off the bat, often via the batsman’s pads

Batter Another word for batsman, first used as long ago as 1773. Also something you fry fish in

Beamer A ball that does not bounce (usually accidently) and passes the batsman at or about head height. If aimed straight at the batsman by a fast bowler, this is a very dangerous delivery (and generally frowned on)

Bend your back – The term used to signify the extra effort put in by a fast bowler to obtain some assistance from a flat pitch

Belter A pitch which offers little help to bowlers and so heavily favours batsmen

Blob A score of 0 (see duck)

Bodyline (also known as leg theory) A tactic most infamously used by England in 1932-33, although one which had been around for some time before that, in which the bowler aimed at the batsman rather than the wicket with the aim of making him give a catch while attempting to defend himself. The fielding side were packed on the leg side to take catches which resulted. This is now illegal. Click here for more.

Bosie An Australian term for a googly, now rarely used. Originated from the inventor of the delivery, BJT Bosanquet

Bouncer A short-pitched ball which passes the batsman at chest or head height

Boundary The perimeter of a cricket field, or the act of the batsman scoring a four or a six (eg “Tendulkar hammered three boundaries”)

Box An abdominal protector worn by batsmen and wicketkeepers. It is also an old term for a fielder in the gully region.

Bump Ball A ball which is played off the bat almost instantly into the ground and is caught by a fielder. Often this has the appearance of being a clean catch

Bumper See Bouncer.

Bunny Also known as Rabbit. A member of the side who cannot bat and is selected as a specialist bowler or wicketkeeper, and who almost always bats at No. 11. It can also be used to describe a player who often gets out to one bowler – “Atherton was McGrath’s bunny”

Bunsen A term used by commentators to describe a pitch heavily favouring slow bowlers. From Cockney rhyming slang (Bunsen Burner = turner).

Bye A run scored when the batsman does not touch the ball with either his bat or body. First recorded in the 1770s.

Carry your bat an opening batsman who remains not out at the end of a completed innings (ie when all his team-mates are out)

Charge, giving the When a batsman leaves his crease to attack the ball, usually against a slow bowler. By doing this he can convert a good-length ball into a half-volley

Chest-on Used to describe a bowler who delivers the ball with his chest facing the batsman, as opposed to being side on

Chinaman A ball bowled by a left-arm slow bowler that turns into the right-hand batsman, in effect a left-arm legspinner. Named after Puss Achong

Chin music Fast bowlers aiming the ball at the batsman’s head. The term originated in the Caribbean

Chucker Another term for a bowler who throws the ball

Closing the face Turning the face of the bat inwards and, in doing so, hitting the ball to the leg side

Corridor of uncertainty A term beloved by commentators which describes an area just outside the batsman’s off stump where he is unsure whether he has to leave or play the ball

Cow corner An unconventional fielding position, more commonly found in the lower reaches of the game, on the midwicket/long-on boundary. The term is thought to have originated at Dulwich College where there was the corner of a field containing livestock on that edge of the playing area. Fielders were dispatched to the “cow corner”

Cricket Max A shortened version of the game with unconventional scoring systems pioneered by Martin Crowe in New Zealand in the late 1990s.

Cross bat A cross-batted shot is where the batsman holds his bat horizontally when striking the ball. Examples of cross-batted shots include hooks, pulls and cuts

Dead ball A ball from which no runs can be scored or wickets taken. First referred to in 1798

Declaration When the batting side ends their innings before all of their players are out

Dibbly-dobbly bowlers – Bowlers who are of medium pace, and are effective in the one-day scenario in choking the runs. New Zealand had a famous quartet – Rod Latham, Gavin Larsen, Chris Harris and Nathan Astle – during the 1992 World Cup

Dolly An easy catch

Doosra A Hindi/Urdu word which means “second” or “other”, the doosra is the offspinner’s version of the googly, delivered out of the back of the hand and turning away from the right-hand batsman

Drifter/ Floater – A delivery bowled by an offspinner which curves away from a right-hander, and then carries straight on instead of turning

Duck A score of 0 (also known as Blob)

Duckworth Lewis Named after Frank Duckworth and Tony Lewis, two mathematicians who devised a system to help decide one-day cricket matches when rain interrupts play. Click here for more information.

Economy rate The average number of runs a bowler concedes per over

Extras Runs not scored by batsmen. There are four common extras – byes, leg byes, wides and no-balls. In Australia these are known as sundries

Featherbed A batsmen-friendly pitch with little life for the bowlers. Often found in Antigua

Flipper A variation for the legspinner that appears to be pitching short but the ball skids on quickly and often results in bowled or lbw. It is a delivery that is used sparingly

Full toss A ball that reaches the batsmen without bouncing. Above waist height it becomes a beamer

Gardening – The act of the batsman repairing indentations in the pitch, made by the ball or studs, with his bat. More likely to happen when a ball has just whistled past his nose or scooted by his ankle

Good length – The ideal length that the bowler aims for, getting the batsman in two minds as whether to play forwards or back

Googly – The legspinner’s variation that turns into the right-hander and away from the left-hander

Grubber – A ball that hardly bounces – see also shooter

Half volley – A ball that is the perfect length for driving, fuller than a good length but not a full-toss

Handled the ball – If the batsmen deliberately touches the ball with his hands he can be given out. Michael Vaughan fell victim to this in India on 2002-03 tour in Bangalore

Hawk-Eye – A tracking technology which helps to explain the intricacies of the sport, Hawk-Eye can be helpful in judging LBWs. At the moment it is used mainly for arm-chair umpiring, although one day it may be used in an official capacity

Heavy ball – When a delivery is quicker than it looks and hits the bat harder or higher than is expected

Hit the ball twice – If a batsmen deliberately strikes the ball twice to gain runs he can be given out. However, the batsman can knock the ball away from his stumps with the bat

Hit the deck – The bowler’s ability to deliver the ball from height and extract extra bounce from the pitch

Hoick – Same as slog, but most used for on-side shots

In-ducker – An inswinging delivery that moves into the batsman very late. Wasim Akram produced deadly versions with the older ball

Inside out, turning the batsman – A batsman aims to leg but the ball goes past the off and he is forced to play the ball open-chested

Inside-out shot – A stroke where the batsman moves towards the leg side and hits a ball around leg stump into the off side

Jaffa – A delivery that is too good for the batsman, and leaves him groping hopelessly at thin air or (as the bowler will hope) dismisses him

King pair – Hardly worth turning up if you get one of these … out first ball for zero in both innings

Kolpak An EU ruling which has led to English county cricket being flooded with players ineligible for England but not classified as overseas players. Click here for a more detailed explanation.

Leading edge – When the batsman mis-hits the ball and edges it forward in the opposite direction to which he was attempting to play

Leg-Before Wicket (LBW) – One of the game’s more complex rules, but at its simplest … you cannot be out if the ball pitched outside the line of leg stump; you cannot be out if the ball hits you outside the line of off stump unless you are offering no stroke. Aside from that, if it hits you in line, the only decision the umpire has to make is whether the ball is going on to hit the stumps.

Leg-bye – When the ball deflects off the pad and the batsmen run. A shot must be offered to the ball. Leg-byes do not count against the bowler

Leg-break/spin – When the ball pitches and turns from leg to off for a right-hander

Leg-cutter – A ball which cuts and moves away from the batsman towards the offside (if he is a righthander)

Leg-side – The area of the pitch behind the batsman’s legs

Leg theory See Bodyline

Length Where the ball pitches down the wicket. Lengths can be generally short, full or good

Lifter – A ball that rises unexpectedly

Line – The line of attack the bowler employs when he is bowling

Lollipop – A really easy ball to hit – a ‘gift’

Long hop – a ball which pitches short, sits up and ‘begs’ to be hit

Loop – The flight of the ball

Maiden – An over where no runs that are attributable to the bowler are scored (byes or leg-byes may be scored in this over, though, as these don’t count against the bowler)

Manhattan A bar graph of runs scored per over which resembles the Manhattan skyscrapers skyline

Mankad – A term popular mainly in indoor cricket – but also fairly popular in Australia for outdoor cricket. Mankad is when the bowler brings his arm round and, instead of releasing the ball, runs out the non-striker by whipping off the bails. This type of dismissal is rare – and usually a warning is given to the batsman beforehand. Named after Vinoo Mankad, who twice dismissed the Australian Bill Brown this way

MCC – The Marylebone Cricket Club, the spiritual home of cricket at Lord’s in St Johns Wood in London. For the greater period of cricket’s formal history, the MCC which was founded in 1787, was the autocratic arbiter in cricket matters. No law could be changed without its approval. And while the administration of the game world-wide has moved to the International Cricket Council, and to the England and Wales Cricket Board in Britain, the MCC is still regarded as the ultimate defender of the laws of the game, a type of Privy Council of cricket. For many years, English touring teams were known officially as the MCC but as the ‘great’ has ebbed away from Britain and its colonies, so the influence of the MCC has diminished. Also the initials of the Melbourne Cricket Club in Victoria.

Middle – To hit the ball from the meat of the bat, “to middle it” is to connect really well. Middle is also the centre of the field, where the bulk of the action takes place

Military Medium – A slightly derogative term for a bowler who has no real pace

Minefield – A difficult batting track. The pitch is in such a state of disrepair that it is almost impossible to play “proper” shots as the ball is popping up everywhere

Nelson – The English superstition that 111 and its multiples are unlucky. The sticks resemble 111, and is loosely connected with Lord Nelson’s physical attributes. Double Nelson is 222

Nervous nineties – The psychological pressure on the batsman knowing he is approaching a century

Net Run Rate – A system for separating sides who finish on level points in multi-team tournaments. Click here for more details.

New ball – Can usually be taken every 80 overs. The advantage is to quick bowlers who have a shiny and bouncy ball, but conversely it can result in an increase in scoring rate as the ball comes off the bat faster

Nick – A faint edge off the bat

Nightwatchman A non-batsman promoted up the order towards the end of a day’s play with the idea of shielding a recognised batsman in the final overs

No-ball – An illegitimate delivery, usually when the bowler has overstepped on the front crease

Nurdle – The batsman nudging the ball around and into gaps

Obstruction – When the batsman wilfully blocks or distracts a fielder to prevent a catch being made or a run-out being effected

Occupy the crease – When a batsman stays at the wicket but scores slowly, often with the intention of playing out for a draw

Off-break/spin – A ball turning into the right hander- from off to leg (from left to right)

Off-cutter – An offbreak delivered at speed

Off the mark When the batsman scores his first run

Off-side The side of the pitch which is to batsman’s right (if right-handed), or left (if left-handed)

On-side The same as the leg-side.

On the up – Making contact with the ball before it reaches the top of the bounce – hitting it on the rise. Viv Richards was a prominent exponent.

Out – There are ten possible ways of being out: bowled, caught, hit wicket, lbw, stumped, timed out, handled the ballobstructionhit the ball twice, and run out. To be out “retired out” is gaining in currency and popularity and counts as a dismissal, unlike “retired hurt”

Outside edge – When the ball hits the edge of the bat which is furthest away from his body.

Outswing – When the ball swings away from the batsman and towards the slips.

Paddle – A sweep shot.

Pair – When a batsman gets a duck in both innings.

Pinch-hitters – Lower-order batsmen promoted in the line-up to try and hit up a few quick runs. Used mostly when a team is chasing a huge total in a one-dayer – the thinking being that a few quick runs will reduce the asking rate; and if the pinch-hitter gets out, the specialist batsmen are still around

Pitch – The bounce of the ball – “it pitches on a good length”. Also, the cut strip in the centre of the field of play.

Play on – When a batsman hits the ball but it goes on to hit the stumps and he is bowled.

Plumb – When the batsman is clearly LBW, even at full speed, he is said to be plumb in front.

Powerplay This was introduced by the ICC in 2005 to try to spruce up the middle overs of one-day internationals by enforcing the bowling side to take three blocks of overs in which they have to have extra fielders within the 30-yard circle. The first Powerplay is mandatory through the first ten overs of the innings, the second and third ones, of five overs each, can be taken at any other time. In rain-reduced matches the duration of the second and third Powerplays is reduced in proportion to the overall reduction.

Pudding – A slow, stodgy pitch which will be difficult to score quickly on.

Pull – a back-foot leg-side shot, distinct from the hook because the pull is played to a ball that hasn’t risen as high.

Rabbit See Bunny

Return Crease Parallel white lines pointing down the pitch, either side of the stumps. A bowler’s back foot must land inside this area or else a no-ball will be called.

Retire To postpone or end one’s innings, either voluntarily through boredom when you’re simply too good for the opposition, or involuntarily and in agony, when a nasty fast bowler has taken his pound of flesh

Reverse Sweep The epitome of the type of shot you will not find in the MCC coaching manual. This stroke is played by dropping to one knee and reversing one’s hands, so that you can swing the ball from leg to off, rather than the more natural off to leg. It is a handy stroke for beating conventional fields in a one-day game, but it has its drawbacks as well – just ask Mike Gatting

Reverse Swing When the ball is 50 overs old and the pitch is as flat as a pancake, this phenomenon is often a bowling side’s saving grace. First mastered by the Pakistani quicks of the 1980s and 1990s, it involves sideways movement of the ball through the air that is contrary to your average everyday laws of physics. If it sounds like rocket science, that is because it is

Rip Big turn for a spin bowler, especially a legspinner, who can use the whole action of the wrist to impart maximum revolutions on the ball. Shane Warne, consequently, bowls a lot of “rippers”

Ring Field A standard fielding arrangement, with men positioned in a circle all around the bat saving the single

Rock Colloquial term for cricket ball

Roll To flatten the playing surface with a heavy rolling device. At the end of an innings, the side about to start their innings will be offered the choice of a heavy or light roller

Roller A heavy rolling device designed to flatten the surface of the pitch

Rope Used to mark the perimeter of the field. If the ball crosses or hits the rope, a boundary will be signalled

Rough The area of a pitch that is scuffed up and loosened by the action of a bowler running through in his follow-through. Usually, this will be situated a foot or so outside leg stump, and consequently it becomes a tasty target for spin bowlers, who can exploit the extra turn to make life a misery for the batsmen

Run-chase Generally the fourth innings of a first-class or Test match, and the latter stages of a one-day game, when the match situation has been reduced to a set figure for victory, in a set time or maximum number of overs

Run-rate Of particular importance in a one-day game, this is the average number of runs scored per over, and is used as a guide to a team’s progress (see Duckworth Lewis)

Run-up The preparatory strides taken by a bowler as they steady themselves for delivery. Also the area in which they perform said action

Runner A player who is called upon by a batsman who might otherwise need to retire hurt. He is required to wear the same padding and stands at square leg or the non-striker’s end to perform the duty of running between the wickets. Often the cause of endless confusion and inevitable run-outs

Sandshoe crusher Colloquial term for Yorker, a full-pitched delivery that is aimed at the batsman’s toes and usually hits them aswell

Seam The ridge of stitching that holds the two halves of a ball together, and causes deviation off the pitch when the ball lands. Seam bowlers, as opposed to swing bowlers, rely on movement off the pitch, rather than through the air

Shoulder arms The description of when a batsman decides that rather than risk being dismissed from a ball he lifts the bat high above his shoulder to attempt to keep his bat and hands out of harm’s way.

Shirtfront A flat, lifeless, soul-destroying wicket that is beloved of batsmen the world over, and loathed by bowlers of all varieties. For a prime example, see the Antigua Recreation Ground

Shooter See grubber

Side on

Sitter The easiest, most innocuous and undroppable catch that a fielder can ever receive. To drop one of these is to invite a whole world of pain from the crowd and constant embarrassment from the giant replay screen (see dolly).

Sledging Not the act of travelling downhill at speed on a toboggan, but the act of verbally abusing or unsettling a batsman, in an attempt to make him lose concentration and give his wicket away. Often offensive, occasionally amusing, always a topic of conversation

Slog – Used to describe a shot which is not in the coaching book

Slogger – Exponent of the slog

Slog-sweep – A heave to the leg side, played like the sweep, but a lofted shot

Slower ball Like naff plastic wristbands, these are the must-have accessory of the modern international bowler. The idea is to deliver a pace of significantly reduced pace, while at the same time turning your arm over at the same speed so as to deceive the batsman. This change of pace can be achieved by a change of grip, or a late tweak of the wrist. The best exponents – Courtney Walsh, Chris Cairns – are lethal. The worst – no names mentioned – tend to be smacked clean over cow corner for six

Standing back/standing up Where a wicketkeeper positions himself for a particular bowler. He stands back for fast bowlers, and stands up for spinners

Stock ball A bowler’s regular delivery, minimum risk, little chance of runs or wickets. To get away with a slower ball, they need a stock ball to lull the batsman into a false sense of security

Stonewall To protect one’s wicket at all costs, putting defence above all other virtues. See Jacques Kallis. Also a gay pride organisation

Strike rate The number of runs a batsman scores per 100 balls; the number of deliveries a bowler needs to take his wickets

Sundries Australian word for extras

Supersub A short-lived experminent in 2005 by the ICC to try to spruce up one-day internationals. It allowed teams to replace on player during a game, but the reality was it heavily favoured the side batting first and was quickly dropped.

Swing A ball that curves through the air, as opposed to off the seam. See also, reverse swing

Tailender Players who come in towards the end of an innings, generally Nos. 8, 9, 10 and 11, who are not noted for their batting prowess (although ideally they can bowl a bit by way of compensation)

Teapot (or double-teapot) A gesticulation beloved of fast bowlers, particularly the grumpier sort, such as Glenn McGrath and Angus Fraser. Involves having both hands on hips at the same time, usually in reaction to a dropped catch, edged boundary or general misfield

Throwing To deliver the ball with a arm that flexes at the elbow at point of delivery, thereby enabling extra spin to be imparted for a slow bowler, or extra pace for a quick bowler. A topic of endless debate

Ton A century (100 runs by a single batsman in one innings)

Tonk To give the ball a good wallop, onomatopoeically named after the sound a good hit makes. See also twat, biff, thwack, belt, spank and leather

Track The pitch

Trundler Slow, laborious type of bowler who thinks he’s quick, once was quick, or is simply old, fat and unfit and needs to be put out to pasture. See military medium

Twelfth man A substitute fielder (and drinks waiter) for the chosen eleven. If called upon to play, he is permitted to field wherever he is needed, but can neither bat nor bowl

Two-paced A wicket that is beginning to break up, usually after three or four days of a Test match, and so produces some deliveries that leap off a length, and others that sneak through at shin-height

Uncovered pitches Pitches that were left open to the elements for the duration of a match, and so developed a variety of characteristics. The failings of a generation of English batsmen were attributed to the decision, in the 1970s, to bring on the covers at the slightest hint of rain

V – in the The arc between mid-off and mid-on in which batsmen who play straight (in accordance with the MCC Coaching Manual) tend to score the majority of their runs. Modern aggressive players, such as Virender Sehwag, tend to prefer the V between point and third man

Wagon-wheel A circular graph or line-drawing depicting the region in which a batsman has scored his runs

Walk (To) The improbable act of a batsman giving himself out, without waiting for an umpire’s decision. Adam Gilchrist, famously, did this against Sri Lanka in the semi-final of the 2003 World Cup. Mike Atherton, equally famously, did not at Trent Bridge in 1998, en route to a matchwinning 98 not out against South Africa

Wicket One of those ubiquitous words that is central to the game of cricket. The word can be used to describe the 22 yards between the stumps, the stumps collectively (bails included), the act of hitting these stumps and so dismissing the batsman, and perversely, the act of not being out (Gayle and Sarwan added 257 for the second wicket). Plus any other use you care to think of

Wide A delivery that pitches too far away from the batsman and so proves impossible to score off. The umpire will single this by stretching his arms out horizontally, an extra will be added to the total and the ball will be bowled again

Wrist spin The version of spin bowling in which the revolutions on the ball are imparted via a flick of the wrist, rather than a tweak of the fingers. As a general rule, a right-arm wristspinner’s action turns the ball from leg to off (legspin) while a left-armer turns it from off to leg (see chinaman)

Wrong ‘un Australian term for a googly – a legspinner’s delivery that turns in the opposite direction, ie from off to leg

Yips A mental affliction that affects many sportsmen, particularly golfers and spin bowlers. It is a mindblock that can cause a player to forget the basics of his game, and in the most serious cases can force that player into early retirement

Yorker A full-pitched delivery that is aimed at the batsman’s toes and/or the base of the stumps. If the ball is swinging, these can be the most lethal delivery in the game, as perfected by Waqar Younis in his pomp

Zooter A spin bowling variation, first devised by Shane Warne. This is a delivery that snakes out of the hand with little or no spin imparted, and so deceives through its very ordinariness. Some question whether the delivery has ever existed, for it could be another of Warne’s mindgames to keep his opponents on their toes

Real Numbers Types – Rational and Irrational – Math Cheatsheet – Class 9 and 10

Chart – Number Systems

Real Numbers

  1. Rational Numbers ( Example : -9, 0 , 5/7, 2/5 etc )
  • Integers ( Example : -2 , -1 , 0 , 1 , 2 , etc )
    • Negative Integers ( Example : -2 , -1 , -3 etc )
    • Whole Numbers ( Example : 0, 1, 2, 3, 4, 5 etc )
      • Zero ( 0 )
      • Positive Integers ( Example : 2 , 3 , 4 etc )
  • Non Integral Rationals ( Example : -5/8 , 8/15 , 2 3/7 etc. )
2. Irrational Numbers ( Example : 5 , 8 , 3 2 , 3 – 7 etc

Unified International Mathematics Olympiad – UIMO – CLASS 2 QUESTION 2020 – PART 1

Unified International Mathematics Olympiad – UIMO – CLASS 2 -QUESTION 2020 – PART 1

01. Which of the following number statements is incorrect?

(A) 234 + 23 = 257 (B) 1000 – 400 = 600

(C) 888 – 37 = 815 (D) 418 + 514 = 932

02. Find the figure that is different from the rest


03. Find the respective values of P and Q.

945 is the same as P tens Q ones

(A) 90 tens 5 ones (B) 9 hundreds 45 tens

(C) 94 tens 5 ones (D) 90 hundreds 45 tens

04. Pole X is 5 m long. Pole Y is 8 m long. How much longer is Pole Y than Pole X ?

(A) 10 m (B) 7 m (C) 3 m (D) 4 m

06. How much does 7 oranges, 4 apples and 6 mango cost ?

(A) 11 (B) 24 (C) 28 (D) 6

07. There are 213 cars and 321 trucks in a car park. How many more trucks than cars are there in the car park ?

(A) 108 (B) 90 (C) 198 (D) zero

08. Jaya had lunch an hour later than the time shown on the given clock. At what time did she have her lunch ?

(A) 1:30 a.m. (B) 1:30 p.m.

(C) 2:30 p.m. (D) 2:30 a.m.

09. What is the mass of the 4 books ?

Each stands for 100 g.

(A) 60 g (B) 90 g (C) 600 g (D) 900 g

10. Which option has the smallest value ?

(A) Eleven (B) Smallest two digit number

(C) 1 tens 3 ones (D) 6 less than 15




1. E , ____ , G, _____ , I

2. K , L , ____ , _____ , 0

3. ____ , Q , R , ____ , T

4. U, V, W, ____ , ____

5. What comes before X ? ____

6. What comes before G ? ____

7. What comes before B ? ____

8. What comes after M ? ____

9. What comes after U ? ____

10. What comes after S ? _____

11. What comes between C and E ? ____

12. What comes between H and J ? _____

13. What comes between R and T ? _____

14. ____ , M , N , O, ____

15. What comes after M ? ____

Olympiad Math Preparation – Class 2 – Pictograph – Part 1

Olympiad Math Preparation – Class 2 – Pictograph – Part 1

1. If stands for 4, then for ________ ?

a. 12b. 16
c. 20d. 24

2. If stands for 20, then stands for ______

a. 20b. 80
c. 100d. 120

3. If stands for 24 ,then stands for ____________

a. 48b. 12
c. 36d. 96

4. If stands for 32 ,then stands for _____

a. 32b. 28
c. 24d. 16

5. If stands for 80, then stands for ________

a. 80b. 32
c. 40d. 20

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Also please put your answers to above questions in comments. We will review the comments and revert back with right answers.

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MATHS FACTS : Addition or Subtraction of Numbers – Part 1

MATHS FACTS : Addition or Subtraction of Numbers – Part 1


1. 0 added to a number gives same number

0 + 0 = 06 + 0 = 60 + 5 = 58 + 0 = 80 + 9 = 9
0 added to a number gives same number

2. 1 added to a number gives next number

1 + 2 = 36 + 1 = 71 + 4 = 57 + 1 = 81 + 9 = 10
1 added to a number gives next number

3. 0 subtracted from a number gives same number

2 – 0 = 27 – 0 = 71 – 0 = 18 – 0 = 89 – 0 = 9
0 subtracted from a number gives same number

4. 1 subtracted from a number gives previous number

2 – 1 = 18 – 1 = 72 – 1 = 19 – 1 = 86 – 1 = 5
1 subtracted from a number gives previous number

5. Number subtracted from itself gives zero (0)

1 – 1 = 08 – 8 = 02 – 2 = 09 – 9 = 06 – 6 = 0
Number subtracted from itself gives zero (0)

Unified Cyber Olympiad 2020 – Class 2 Examination Papers – Part 5

Unified Cyber Olympiad 2020 – Class 2 Examination Papers – Part 5

Select the correct option to answer every question given below.

Class – 2 Computers

41. Select the incorrect match.

42. The mouse which has a rubber or a metal ball under its belly is known as _.
(A) Mechanical mouse (B) Optical mouse
(C) 3D mouse (D) Tactile mouse

43. Who am I ?
• I am the processing unit of a computer.
• All major activities of the computer are
coordinated by me.

44. The given images shows the use of computers in

(A) Police station (B) Bank
(C) School (D) None of these

45. By speaking into __ you can record your voice in the computer.

Class – 2 English

46. Complete spellings correctly for given pictures and match them correctly to get the complete mark.

(A) P = (ii), Q = (iii), R = (i), S = (iv)
(B) P = (iv), Q = (ii), R = (iii), S = (i)
(C) P = (i), Q = (ii), R = (iii), S = (iv)
(D) P = (ii), Q = (iii), R = (iv), S = (i)

47. Select option that is a plural.
(A) Class (B) Rice (C) Sheep (D) Cheese

48. Which option is a wrong spelling ?
(A) Sparrow (B) Girraffe (C) Elephant (D) Zebra

49. Select option that is a collective noun.
(A) Rack (B) Sack (C) Pack (D) Hack

50. Select option that can be a past tense.
(A) Catch (B) Cut (C) Sell (D) Eat

Unified Cyber Olympiad 2020 – Class 2 Examination Papers – Part 4

Unified Cyber Olympiad 2020 – Class 2 Examination Papers – Part 4

Select the correct option to answer every question given below.

Class – 2 Computers

31. Which of the following is/are an example of the latest computing device ?

32. Select the option which refers to the use of computers in the picture.

(A) Sports (B) Hospitals
(C) Defence (D) Railways

33. Select the correct device that is used only for output.

34. Who am I ?
• I have numbers and letters printed on it.
• It is required to type data into a computer.

35. Which of the following is not an electric device ?

36. Which device is used in supermarkets for billing purposes ?

37. Who am I ?
• A portable video game console.
• I comprises of built in screen, game controls and speakers.
(A) Handheld game console
(B) Mouse console
(C) Keyboard console
(D) Portable speaker console

38. What kind of computer device do you see here ?

(A) input (B) output
(C) storage (D) processing

39. Which of the following statements is CORRECT about the given images ?

(A) Image 1 shows input, Image 2 shows output and Image 3 shows processing.
(B) Image 1 shows output, Image 2 shows input and Image 3 shows processing.
(C) Image 1 shows input, Image 2 shows processing and Image 3 shows output.
(D) Image 1 shows output, Image 2 shows processing and Image 3 shows input.

40. Which of the following statements indicate that computers are used in hospitals ?
(A) Computers are used to maintain records of patients.
(B) They can also be used to diagnose the presence of
disease in a patient.
(C) They also help the doctors in performing operations.
(D) All of these

Unified Cyber Olympiad 2020 – Class 2 Examination Papers – Part 3

Unified Cyber Olympiad 2020 – Class 2 Examination Papers – Part 3

Select the correct option to answer every question given below.

Class – 2 Reasoning

21. Choose the odd one out.

22. Which tile in the options complete the grid ?

23. Select the shadow of the given figure.

24. Count the number of smiley.

(A) 18 (B) 22 (C) 20 (D) 21

25. Find the total number of differences between two images.

(A) 2 (B) 3 (C) 4 (D) 1

26. The shapes are put one behind the other. Identify the shape in the THIRD position from the front.

27. Which colour tile is used for more number of times ?

28. The image is cut through the red dotted lines. Which option cannot be one of the pieces after the cut ?

29. Select the matching pair.
Young : Old : : Wide : ?
(A) insufficient (B) narrow
(C) big (D) long

30. If the dots numbered 2-4-6-2 are connected, which shape will they form ?

Unified Cyber Olympiad 2020 – Class 2 Examination Papers – Part 2

Unified Cyber Olympiad 2020 – Class 2 Examination Papers – Part 2

Select the correct option to answer every question given below.

Class – 2 Mental Ability

11. Sahas needs to place 3 numbers in place of question
marks. Choose the correct option of numbers that will
make equation true.
? + ? – ? = 15
(A) 7, 2, 5 (B) 4, 10, 7
(C) 2, 6, 10 (D) 10, 7, 2

12. Which two trees are of the same height ?

(A) Q and S (B) P and R
(C) P and Q (D) R and S

13. Navya has a bag of marbles in three colours. She has twelve more red marbles than white marbles. She has three fewer white marbles than green ones. There are eight green marbles. How many marbles are in the bag ?

(A) 30 (B) 23 (C) 25 (D) 39

14. Eesha and Jhony each have 15 tiger stickers. Tinku has 20 tiger stickers. Which process could they use to find out how many tiger stickers they have altogether ?

(A) Add 15 and 20
(B) Add 15 and 20, then multiply by 2
(C) Multiply 15 and 20
(D) Multiply 15 by 2, then add 20

15. Select the number that replaces the question mark.

(A) 14 (B) 13 (C) 6 (D) 8

Class – 2 Reasoning

16. Which option should go in place of question mark ?

17. Which option completes the second pair in the same way as the first pair ?

18. Identify the hidden animal from the given image and select the correct option.

(A) Frog (B) Snake
(C) Fish (D) Camel

19. Choose the odd one out ?

Which option completes the second pair in the same way as the first pair ?

Unified Cyber Olympiad 2020 – Class 2 Examination Papers – Part 1

Unified Cyber Olympiad 2020 – Class 2 Examination Papers – Part 1

Select the correct option to answer every question given below.
Class – 2 Mental Ability

1. What is the missing number in the number bond ?

(A) 5 (B) 6 (C) 3 (D) 4

2. Manasa has 6 more stickers than Priya. Priya has 15
stickers. How many stickers will be there with Manasa ?
(A) 21 (B) 19 (C) 20 (D) 18

3. Which is the sixth animal from the left ?

(A) C (B) D (C) E (D) F

4. Which number statement best represents the given picture ?

(A) 5 + 2 = 7 (B) 7 – 2 = 5
(C) 3 + 2 = 5 (D) 5 – 2 = 3

5. Which of the given images are in the shape of a circle ?

(A) 1, 3, 6 (B) 1, 5, 6
(C) 3, 4, 5 (D) 1, 6

6. If there are 12 girls and 8 boys in each group, how many children are there in 8 groups ?
(A) 80 (B) 140 (C) 120 (D) 160

7. The arrow shows how much the minute hand travels.
Based on the picture, how many minutes have passed ?

(A) 25 minutes (B) 30 minutes
(C) 35 minutes (D) 45 minutes

8. Which pair of cards have a sum of 28 ?

9. Which pair of children saved the same amount of money ?

(A) Krish and Ria (B) Maya and Krish
(C) Ria and Maya (D) Anu and Maya

10. Kushi has 10. She spent some money on an eraser and had 6 left. How much did the eraser cost ?
(A) 5 (B) 4 (C) 8 (D) 6



1.        COMPLETE THE MISSING LETTER of the word

W _ N T E R

A)     A                     B)  I                        C) E


a)      FLAG             b) FLEG

3. WHO AM I?

 I twinkle

There are millions of me

I will light your way

I come out at night

I hide in the sky

a)      STAR                b) MOON


He ____ an old man (is/or)

A)      IS  B) OR



A)     SH             B) CH


a)      Singular                            b) Plural

7.       Match the pictures, (Lock/key)

a)      LOCK AND LATCH         b) LOCK AND KEY                              c) KEY AND LATCH

8.       OPPOSITES

A)     BETTER               B) BAD


a)      E _ G _ I

A)     G, H               B)  D,F      C) F,H


A)     HEN               B)  COW

Olympiad English – Class 2 – Picture Quiz – Nouns

Olympiad IEO – Class 2 -Identify Picture – Nouns

Identify noun which describes picture

Question 1 :

a. Cricketb. Hockey
b. Baseballd. Football

Question 2 :

a. Busb. Train
b. Card. Truck

Question 3:

a. Policemanb. Fireman
b. Soldierd. Doctor

Question 4:

a. Desktopb. Smartphone
b. Tabletd. Laptop

Question 5:

a. Violinb. Guitar
c. Fluted. Sitar

Question 6:

a. Burgerb. Cake
c. Pizzad. Sandwich

Question 7:

a. Hospitalb. School
c. Officed. Library

Question 8:

a. Breadb. Cake
c. Burgerd. Bun

Question 9:

a. Schoolb. Fire Station
c. Laundryd. Police Station

Question 10:

a. Schoolb. Airport
c. Railway Stationd. Metro Station

Weekly Current Affairs Quiz: 31 May to 1 June May 2021 for Competitive Exams

Weekly Current Affairs Quiz: 31 May to 1 June 2021 for Competitive Exams

Current Affairs

1. New CBI Director

Senior IPS officer Subodh Kumar Jaiswal was on May 25, 2021 appointed as the new CBI director for two years, as per the personnel ministry order. A three-member selection committee led by PM Narendra Modi on May 24, 2021, had shortlisted Jaiswal’s name for the position of director, Central Bureau of Investigation.


Current Affairs Quiz

1. “Action and Investment in Menstrual Hygiene and Health” is the theme of which special day celebrated on May 28?

[A] World Menstrual Hygiene Day
[B] World Women Health Day
[C] World Personal Health Day
[D] World Hygiene Day