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Discussion :: Number Series

  1. 9, 12, 11, 14, 13, 16, 15, ... choose which pair of numbers comes next?

    2. A.

     14, 13
    B.

     18, 21
    C.

     14, 17
    D.

     12, 13
    E.

     18, 17

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    Answer : Option E

    Explanation :

    This is a simple alternating addition and subtraction series. First, 3 is added, then 1 is subtracted, then 3 is added, 1 subtracted, and so on.

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