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Discussion :: Number Series

  1. Find the wrong number in the series, 2, 6, 15, 31, 56, 93.
    2. A.
    93
    B.
    15
    C.
    31
    D.
    56

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    Answer : Option A

    Explanation :

    In this series, the difference between the two consecutive numbers is 4, 9, 16, 25, and 37 (22 + 32 + 42 + 52 + 62). So, after 25 there should be 36, not 37, and after 56 there should be 92 (56+36) not 93.

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