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Railways R.R.C. (Hazipur) Solved Paper Held on 1-12-2013

  • question_answer
    Choose the correct alternative that will continue the same pattern and replace the question mark (?) in the given series? 198, 194, 185, 169, 2

    A) 92                                

    B) 112         

    C) 136                              

    D) 144         

    Correct Answer: D

    Solution :

    \[198-{{2}^{2}}=194\] \[194-{{3}^{2}}=185\] \[185-{{4}^{2}}=169\] \[?=169-{{5}^{2}}=144\]


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