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Discussion :: Number Series

  1. 7, 26, 63, 124, 215, 342, ?

    2. A.

     391
    B.

     421
    C.

     481
    D.

     511

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    Answer : Option D

    Explanation :

    The terms of the given series are (23 - 1), (33 - 1), (43 - 1), (53 - 1), (63 - 1), (73 - 1),.....
    So, missing term = (83 - 1) = (512 - 1) = 511.

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