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

  • question_answer
    \[{{\left( \sqrt{1} \right)}^{2}}+{{\left( \sqrt{2} \right)}^{2}}+{{\left( \sqrt{3} \right)}^{2}}+{{\left( \sqrt{4} \right)}^{2}}=?\]

    A) 6                                 

    B) 8

    C) 10                                

    D) 9

    Correct Answer: C

    Solution :

    \[{{\left( \sqrt{1} \right)}^{2}}+{{\left( \sqrt{2} \right)}^{2}}+{{\left( \sqrt{3} \right)}^{2}}+{{\left( \sqrt{4} \right)}^{2}}\] \[=1+2+3+4\] \[=10\]


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