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Odds in favour of or against an event on a single throw of a die

This type of question, asked 3 times: 22 Apr 2025 S1, 13 May 2026 S1, 13 May 2026 S2. All 3 questions below, oldest first.

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  1. Question 1

    22 Apr 2025 S1

    139
    In a single toss of a fair die, the odds against the event that number 4 or 5 turns up is

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  2. Question 2

    13 May 2026 S1

    100
    A fair die is thrown. The odds in favor of getting a number which is a perfect square on the uppermost face of the die are...

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  3. Question 3

    13 May 2026 S2

    100
    If a fair die is thrown, then the odds in favor of getting a perfect square on the uppermost face are:

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