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Logical Reasoning

Critical reasoning, syllogisms, input-output, and mathematical logic

Sample Practice Questions

  1. Find the odd one out: 16, 25, 36, 40

    • 16
    • 25
    • 36
    • 40
    Show answer

    Answer: 40

  2. What is the next prime number after 13?

    • 15
    • 16
    • 17
    • 19
    Show answer

    Answer: 17

  3. 2 : 8 :: 3 : ? (relationship is cubing)

    • 9
    • 18
    • 27
    • 12
    Show answer

    Answer: 27

  4. If 5 workers build a wall in 10 days, how long do 10 workers take (same rate)?

    • 20 days
    • 10 days
    • 5 days
    • 2 days
    Show answer

    Answer: 5 days

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Practice Questions

Practise IMO questions on Logical Reasoning. Answers are revealed after each question.

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Frequently Asked Questions

What does Logical Reasoning cover in the IMO exam?

Critical reasoning, syllogisms, input-output, and mathematical logic.

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