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    What should come in place of the question mark (?) in the following series? 2, 6, 12, 20, ?
    Question

    What should come in place of the question mark (?) in the following series?
    2, 6, 12, 20, ?

    A.

    40

    B.

    35

    C.

    30

    D.

    25

    Correct option is C

    Given:
    2, 6, 12, 20, ?
    Logic: The differences between the terms increase by +2.
    6 − 2 = 4,
    12 − 6 = 6,
    20 − 12 = 8.
    The next difference will be 10.
    So, 20 + 10 = 30.
    Thus, correct option is (C).

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