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Discussion :: Number Series

  1. Find the missing term: 2, 15, 4, 12, 6, 7, ?, ?

    2. A.

     8, 8
    B.

     8, 0
    C.

     3, 8
    D.

     None of these

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    Answer : Option B

    Explanation :

    Let the missing terms of the series be x1 and x2.
    Thus, the sequence 2, 15, 4, 12, 6, 7, x1, x2 is a combination of two series:
    I. 2, 4, 6, x1 and
    II. 15, 12, 7, x2
    I consists of consecutive even numbers. So, missing term, x1= 8
    The pattern in II is - 3, - 5, ........So, missing term x2 = 7 - 7 = 0

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