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    The square of a number ends in 4. Then its cube ends in-
    Question

    The square of a number ends in 4. Then its cube ends in-

    A.

    8

    B.

    4

    C.

    6

    D.

    2 or 8

    Correct option is D

    Formula Used:
    If the square of a number ends in 4, the number must end in 2 or 8.
    Solution:
    If the number ends in 2, its cube ends in 8. If the number ends in 8, its cube ends in 2. Hence both 2 or 8 can be the ending number of its cube.

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