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    Find the missing number in the following series. 4, 7, 12, (…), 28, 39
    Question

    Find the missing number in the following series.
    4, 7, 12, (…), 28, 39

    A.

    19

    B.

    14

    C.

    24

    D.

    16

    Correct option is A

    Given - 4, 7, 12, (…), 28, 39
    7 - 4 = 3
    12 - 7 = 5
    difference may be odd numbers starting by 3 so next difference should be 7
    12 + 7 = 19
    19 + 9 = 28 which satisfied with next term so
    final answer is 19.

    alternative method:

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