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In the following number series, a wrong number is given. Find out the wrong number. 2 13 27 113 561 3369 23581

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1 Answer

  1. Explanation:

    The given series is based on the following pattern :

    2Γ—2+7=11( not 13)

    11Γ—3βˆ’6=27

    27Γ—4+5=113

    113Γ—5βˆ’4=561

    Obviously the number 13 is wrong and it should be replaced with 11.

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