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    Select the number from among the given options that can replace the question mark (?) in the following series. 13, 39, 65, 91, 117, ?
    Question

    Select the number from among the given options that can replace the question mark (?) in the following series.
    13, 39, 65, 91, 117, ?

    A.

    130

    B.

    143

    C.

    127

    D.

    145

    Correct option is B

    Analyzing the series:
    13,39,65,91,117, ?
    The differences:
    39-13=26
    65-39=26
    91-65=26
    117-91=26
    Each number increases by 26 :
    ?= 117+26=143
    Therefore, the correct answer is (b) 143.

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