SOF IMO for Class 6

IMO Class 6 at a glance

Conducted by

Science Olympiad Foundation

Questions for Class 6

50

Duration

60 min

Total marks

60

Fee

₹150-200

Exam window

Oct-Dec (L1); Feb (L2)

Levels

2 (Level 2 for Class 3-12)

Classes eligible

1-12

Level 1 is held in Oct-Dec and Level 2 in Feb. Each school picks its exam day inside the window; the date for your child comes from the school. Confirm on sofworld.org.

Exam pattern for Class 6

50 questions for 60 marks, 60 minutes, all multiple choice. No negative marking.

Ties are broken by section, in this order: Achievers > Everyday Maths > Mathematical Reasoning > Reasoning (M4,M2,M3,M1).

Try 8 real Class 6 questions

Straight from the PrepMojo question bank, written to the pattern of the SOF papers. Have a go, then open the answer.

1. Question 1 · Maths

   Zara thinks of a number, divides it by 3, then adds 14, and ends up with 20. What number did Zara think of?

   1. A.9
   2. B.102
   3. C.46
   4. D.18
   Show answer

   Answer: D. 18

   Start at the end and undo each step, taking them in the opposite order to the one they were done in: take away 14 from 20 to get 6; multiply 6 by 3 to get 18. So the number was 18. Each step has to be swapped for its opposite - adding undoes taking away, and multiplying undoes dividing.

2. Question 2 · Maths

   How many prime numbers are there from 20 to 40?

   1. A.17
   2. B.4
   3. C.5
   4. D.10
   Show answer

   Answer: B. 4

   A prime number has exactly two factors, itself and 1. The primes from 20 to 40 are 23, 29, 31, 37. That is 4 of them.

3. Question 3 · Maths

   Nisha has ₹220 and saves ₹20 every week. After how many weeks will she have ₹800?

   1. A.30
   2. B.3
   3. C.29
   4. D.31
   Show answer

   Answer: C. 29

   She needs ₹800 − ₹220 = ₹580 more, and ₹580 ÷ ₹20 = 29 weeks.

4. Question 4 · Maths

   Tara thinks of a number, multiplies it by 5, then takes away 7, then adds 14, and ends up with 157. What number did Tara think of?

   1. A.143
   2. B.145
   3. C.30
   4. D.792
   Show answer

   Answer: C. 30

   Start at the end and undo each step, taking them in the opposite order to the one they were done in: take away 14 from 157 to get 143; add 7 to 143 to get 150; divide 150 by 5 to get 30. So the number was 30. Each step has to be swapped for its opposite - adding undoes taking away, and multiplying undoes dividing.

5. Question 5 · Maths

   Which of these is a factor of 20?

   1. A.10
   2. B.40
   3. C.6
   4. D.3
   Show answer

   Answer: A. 10

   A factor divides the number exactly: 20 ÷ 10 leaves no remainder. The factors of 20 are 1, 2, 4, 5, 10, 20. A MULTIPLE of 20 - 40, 60 - is the opposite idea: it is what 20 divides into.

6. Question 6 · Maths

   How many kilometres are there in 3000 metres?

   1. A.3000000
   2. B.30000
   3. C.3
   4. D.3000
   Show answer

   Answer: C. 3

   1 kilometre = 1000 metres, so 3000 metres = 3000 ÷ 1000 = 3 kilometres. Going UP to a bigger unit (kilometre) always makes the number smaller.

7. Question 7 · Logical Reasoning

   In a certain code, CHAIR is written as 39. In the same code, what number is HORSE written as?

   1. A.65
   2. B.75
   3. C.60
   4. D.70
   Show answer

   Answer: A. 65

   Test a rule against the example before using it. Adding each letter's place in the alphabet (A=1, B=2 ... Z=26) gives CHAIR = 39, which matches - so HORSE = 8 + 15 + 18 + 19 + 5 = 65.

8. Question 8 · Logical Reasoning

   Asha is taller than Bela. Esha is taller than Asha. Bela is taller than Chetan. Who is the tallest?

   1. A.Asha
   2. B.Esha
   3. C.Bela
   4. D.Chetan
   Show answer

   Answer: B. Esha

   Join the clues into one line before answering. Each clue shares a name with another, and together they give Esha > Asha > Bela > Chetan - so the tallest is Esha and the shortest is Chetan. No single clue answers the question; the line does.

SOF IMO Class 6 syllabus

As published by SOF for Class 6: 4 sections, 17 topics. Reproduced as printed, so what you read here is what the paper is set from.

Compiled from sofolympiadtrainer.com. Always confirm against the official site before an exam.

Questions parents ask about IMO Class 6

What is the SOF IMO syllabus for Class 6?

The Class 6 paper has 4 sections: Logical Reasoning, Mathematical Reasoning, Everyday Mathematics, Achievers. Topics include Verbal and Non-Verbal Reasoning, Knowing Our Numbers, Whole Numbers, Playing with Numbers, Basic Geometrical Ideas, Understanding Elementary Shapes, Integers, Fractions, Decimals, Data Handling. The full list of 17 topics, as SOF publishes it, is on this page.

How many questions are in the Class 6 IMO paper?

50 questions for 60 marks, in 60 minutes. Logical Reasoning: 15 questions of 1 mark each; Mathematical Reasoning: 20 questions of 1 mark each; Everyday Mathematics: 10 questions of 1 mark each; Achievers Section: 5 questions of 3 marks each. There is no negative marking.

When is the SOF IMO exam for Class 6 in 2026-27?

Level 1 is held in Oct-Dec and Level 2 in Feb. Each school picks its own exam day inside that window and tells its students, so the date for your child comes from the school. Confirm it on the official SOF site before the exam.

Who goes to IMO Level 2 from Class 6?

IMO has a second level for Class 3 and above. SOF's rule for who qualifies from Level 1: Top 5% class-wise; OR zone top 25; OR school topper (min 10, 50%).

Where can a Class 6 child practise IMO questions for free?

On PrepMojo. Every child gets 10 practice questions a day free, forever, with no card needed, and every answer comes with an explanation. It works in the app on iPhone and Android and in any web browser. Till 30 Nov 2026, every child has PrepMojo Plus at no cost as part of our Navratri and Diwali Offer.