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    Which of the following options will replace the question mark (?) in the given series?71, 213, 639, 1917, 5751, ?
    Question

    Which of the following options will replace the question mark (?) in the given series?
    71, 213, 639, 1917, 5751, ?

    A.

    19479

    B.

    11643

    C.

    17253

    D.

    16509

    Correct option is C

    Given Series: 71,213,639,1917,5751,?
    Logic: each number is multiplied by 3 to get next number.
    71×3=213
    213×3=639
    639×3=1917
    1917×3=5751
    5751×3=17253
    Thus, the next number in the sequence is 17,253.
    Thus, correct option is (c).

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