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Discussion :: Number Series

  1. Find the missing number in the series; 196, 169, 144, _, 100, 81.
    2. A.
    111
    B.
    131
    C.
    121
    D.
    141

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    Answer : Option C

    Explanation :

    The series consists of squares of consecutive natural numbers in decreasing order, i.e., the numbers 196, 169, 144, _, 100, 81 can be written as 142, 132, 122, 112, 102, 92. So, the missing number is 121.

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