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    What should come in place of the question mark (?) in the given series? 24 31 40 47 56 63 ?
    Question

    What should come in place of the question mark (?) in the given series?
    24 31 40 47 56 63 ?

    A.

    78

    B.

    72

    C.

    92

    D.

    86

    Correct option is B

    Information Given:
    24, 31, 40, 47, 56, 63, ?
    Logic: Differences alternate: +7, +9.
    Step-by-step:
    24 → 31 (+7)
    31 → 40 (+9)
    40 → 47 (+7)
    47 → 56 (+9)
    56 → 63 (+7)
    63 → 72 (+9)
    Final Answer:
    72
    Final Correct Option:
    B

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