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Discussion :: Number Series

  1. 7, 10, 8, 11, 9, 12, ... What number should come next?

  2. A.

     7

    B.

     10

    C.

     12

    D.

     13

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    Answer : Option B

    Explanation :

    This is a simple alternating addition and subtraction series. In the first pattern, 3 is added; in the second, 2 is subtracted.

    Alternate Explanation :
    Above Series contains two sub series in it
    Series 1st = 7, 8, 9, 10
    Series 2nd = 10, 11, 12

    Note : Both sub series is in ascending order. Next number is greater by 1 from the previous one.


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