SOF IMO for Class 3

IMO Class 3 at a glance

Conducted by

Science Olympiad Foundation

Questions for Class 3

35

Duration

60 min

Total marks

40

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 3

35 questions for 40 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 3 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

   In the number 482, what is the value of the digit 2?

   1. A.2
   2. B.80
   3. C.20
   4. D.200
   Show answer

   Answer: A. 2

   Counting from the right, the 2 in 482 is in the ones place, so it is worth 2 × 1 = 2.

2. Question 2 · Maths

   Asha buys a kite for ₹37 and pays with a ₹50 note. How much change does she get back?

   1. A.₹23
   2. B.₹3
   3. C.₹13
   4. D.₹37
   Show answer

   Answer: C. ₹13

   Change is what comes back: ₹50 − ₹37 = ₹13. Check it the other way: ₹37 + ₹13 = ₹50.

3. Question 3 · Maths

   Nikhil has ₹50. One notebook costs ₹7. What is the greatest number of notebooks Nikhil can buy?

   1. A.1
   2. B.7
   3. C.6
   4. D.49
   Show answer

   Answer: B. 7

   7 of them cost 7 × ₹7 = ₹49, which can be paid. One more would cost ₹56, which is more than ₹50. So the greatest number is 7, with ₹1 left over.

4. Question 4 · Maths

   How many seconds are there in 5/12 of a minute?

   1. A.12 seconds
   2. B.25 seconds
   3. C.60 seconds
   4. D.5 seconds
   Show answer

   Answer: B. 25 seconds

   Start from the whole unit: one minute is 60 seconds. Splitting that into 12 equal parts gives 5 seconds in each part, and the question asks for 5 of those parts.

5. Question 5 · Maths

   Vihaan has 55 crayons. Each box holds 6 crayons. How many crayons are left over after the boxes are filled?

   1. A.9
   2. B.1
   3. C.6
   4. D.5
   Show answer

   Answer: B. 1

   Taking away 6 crayons at a time fills 9 boxes and leaves 1 over. The number left over is 1.

6. Question 6 · Maths

   Box P holds 342, Q holds 324, R holds 432, S holds 423. Which order goes smallest to greatest?

   1. A.Q, P, R, S
   2. B.P, Q, S, R
   3. C.Q, S, P, R
   4. D.Q, P, S, R
   Show answer

   Answer: D. Q, P, S, R

   Compare digit by digit from the left, never by how long a number looks: 324 < 342 < 423 < 432. Then read off whose box each one is, in that order.

7. Question 7 · Logical Reasoning

   What is Arjun's father's brother's son to Arjun?

   1. A.uncle
   2. B.nephew
   3. C.brother
   4. D.cousin
   Show answer

   Answer: D. cousin

   Your father's brother is your uncle, and your uncle's son is your cousin.

8. Question 8 · Logical Reasoning

   How is Sara's daughter's daughter related to Sara?

   1. A.daughter
   2. B.granddaughter
   3. C.grandmother
   4. D.grandson
   Show answer

   Answer: B. granddaughter

   Take the chain one step at a time. Sara's daughter is one step down the family, and that person's daughter is another step down. So that person is Sara's granddaughter.

SOF IMO Class 3 syllabus

As published by SOF for Class 3: 4 sections, 26 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 3

What is the SOF IMO syllabus for Class 3?

The Class 3 paper has 4 sections: Logical Reasoning, Mathematical Reasoning, Everyday Mathematics, Achievers. Topics include Patterns, Analogy and Classification, Alphabet Test, Coding-Decoding, Ranking Test, Grouping of Figures and Figure Matrix, Mirror Images, Geometrical Shapes, Embedded Figures, Possible Combinations. The full list of 26 topics, as SOF publishes it, is on this page.

How many questions are in the Class 3 IMO paper?

35 questions for 40 marks, in 60 minutes. Logical Reasoning: 10 questions of 1 mark each; Mathematical Reasoning: 10 questions of 1 mark each; Everyday Mathematics: 10 questions of 1 mark each; Achievers Section: 5 questions of 2 marks each. There is no negative marking.

When is the SOF IMO exam for Class 3 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 3?

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 3 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.