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SSC Sample Paper SSC CHSL (10+2) Sample Test Paper-7

  • question_answer
    If 123 =14 and 323 = 22, then 624 =?

    A)  60                               

    B)  72

    C)  56                     

    D)         55

    Correct Answer: C

    Solution :

     123 = 14 \[\Rightarrow \]\[{{(1)}^{2}}+{{\left( 2 \right)}^{2}}+{{\left( 3 \right)}^{2}}\]  \[=1+4+9=14\] 323 = 22  \[\Rightarrow \] \[{{(3)}^{2}}+{{(2)}^{2}}+{{(3)}^{2}}=22\] \[\Rightarrow 9+4+9=22\] Therefore.       \[624\Rightarrow {{(6)}^{2}}+{{(2)}^{2}}+{{(4)}^{2}}\]              \[\Rightarrow \] \[36+4+16=56\]


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