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Railways R.R.C. (Bilaspur) Solved Paper Held on 24-11-2013

  • question_answer
    What number will come in place of question mark in the following number series? 9, 25, 49,? 121, 169

    A) 64                    

    B)   81

    C) 100                              

    D) 56

    Correct Answer: B

    Solution :

    \[{{(3)}^{2}}=9\] \[{{(5)}^{2}}=25\] \[{{(7)}^{2}}=49\] \[?={{(9)}^{2}}=81\] \[{{(11)}^{2}}=121\] \[{{(13)}^{2}}=169\]


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