Railways Sample Paper RRBs Assistant Loco Pilot and Technician CBT STAGE-I Sample Paper-18

  • question_answer
    Find the missing number

    A)  86                   

    B)  88

    C)  120                 

    D)  90

    Correct Answer: A

    Solution :

    \[{{(2)}^{2}}+{{(2)}^{2}}+{{(4)}^{2}}+{{(3)}^{2}}=4+4+16+9=33\] \[{{(3)}^{2}}+{{(2)}^{2}}+{{(5)}^{2}}+{{(4)}^{2}}=9+4+25+16=54\] \[{{(6)}^{2}}+{{(5)}^{2}}+{{(4)}^{2}}+{{(3)}^{2}}=36+25+16+9=(86)\]


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