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    Select the number from among the given options that can replace the question mark (?) in the following series.188, 187, 183, 174, 158, ?
    Question

    Select the number from among the given options that can replace the question mark (?) in the following series.
    188, 187, 183, 174, 158, ?

    A.

    133

    B.

    129

    C.

    137

    D.

    139

    Correct option is A

    Given series:

    188, 187, 183, 174, 158, ?

    Logic: Square of natural number is decreasing in this number series.

    188-12=188-1=187

    187-22=187-4=183

    183-32=183-9=174

    174-42=174-16=158

    158-52=158-25=133

    So, 133 is the missing number.
    Thus, correct option is (a).

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