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    Select the option that is related to the third number in the same way as the second number is related to the first number.1728 : 12 :: 512 : ?
    Question

    Select the option that is related to the third number in the same way as the second number is related to the first number.
    1728 : 12 :: 512 : ?

    A.

    10

    B.

    8

    C.

    9

    D.

    6

    Correct option is B

    Given:
    1728 : 12 :: 512 : ?
    Logic: The given number is the cube of the related number (Next Number).
    ​1728 : 12
    1728 = 12³ (12 × 12 × 12 =1728)
    Similarly,
    ​512 : ?
    512 = 8³ (8 × 8 × 8 = 512)
    So, the missing number is 8.
    Thus, the correct option is: (b)

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