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Odd number pair: second built from the square root of the first

This type of question, asked 3 times: 18 Jul 2023 S2, 20 Jul 2023 S1, 24 Jul 2023 S4. All 3 questions below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    18 Jul 2023 S2

    3
    The second number in the given number pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) are followed in all the number pairs except one. Find that odd number pair.

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  2. Question 2

    20 Jul 2023 S1

    8
    The second number in the given number-pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) is/are followed in all the number-pairs except one. Find that odd number-pair.

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  3. Question 3

    24 Jul 2023 S4

    12
    The second number in the given number-pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) is/are followed in all the number-pairs except one. Find that odd number-pair.

    Tap an option to check your answer.