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    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
    Question

    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.

    A.

    (1000, 125)

    B.

    (216, 49)

    C.

    (1728, 216)

    D.

    (512, 64)

    Correct option is B

    In this question following logic is followed-
    Option (a) 1000, 125 → 103, 53
    Option (b) 216, 49 → 63, 72
    Option (c) 1728, 216 → 123, 63
    Option (d) 512, 64 → 83, 43
    In the all-option 1st and 2nd number are a cube number except option (b) and also the 2nd number is without cube is the half of the 1st number.
    Thus, the correct option is (b).

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