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Discussion :: Number Series

  1. Find out the wrong term: 2, 3, 4, 4, 6, 8, 9, 12, 16

    2. A.

     3
    B.

     6
    C.

     9
    D.

     12

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    Answer : Option C

    Explanation :

    The given sequence is a combination of three series:
    I: 1st, 4th, 7th terms i.e., 2, 4, 9.....
    II: 2nd, 5th, 8th terms i.e.,3, 6, 12.......
    III: 3rd, 6th, 9th terms i.e., 4, 8, 16..................
    In each one of I, II and III, each term is twice the preceding term.
    So, 9 is wrong and must be replaced by (4 × 2) i.e., 8.

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