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Discussion :: Number Series

  1. Look at this series: 4, 7, 25, 10, __, 20, 16, 19, ... What number should fill the blank?

    2. A.
    13
    B.
    15
    C.
    20
    D.
    28

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    Answer : Option A

    Explanation :

    Two series alternate here, with every third number following a different pattern. In the main series, 3 is added to each number to arrive at the next. In the alternating series, 5 is subtracted from each number to arrive at the next.

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