Railways R.R.C. (Hajipur) Solved Paper Held on 1st Shift 30-11-2014

  • question_answer
    Observe the trend and find out the missing character from the given alternatives?
    2 5 10
    17 ? 3 7
      65 82

    A) 20                                

    B) 26

    C) 27                                

    D) 32

    Correct Answer: B

    Solution :

    \[{{1}^{2}}+1=2;\]   \[{{2}^{2}}+1=5;\]   \[{{3}^{2}}+1=10\] \[{{4}^{2}}+1=16\]  \[?={{5}^{2}}+1+26\]          \[{{6}^{2}}+1=37\] \[{{7}^{2}}+1=50;\] \[{{8}^{2}}+1=65;\] \[{{9}^{2}}+1=82\]


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