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SSC Sample Paper Mock Test-19 SSC CGL Tear-II Paper-1

  • question_answer
    If \[x*y={{x}^{2}}+{{y}^{2}}-xy,\] then the value of \[9*11\]is

    A) 93

    B)  103  

    C)  113

    D)  121

    Correct Answer: B

    Solution :

      \[x*y={{x}^{2}}+{{y}^{2}}-xy\]                       (Given) \[9*11={{9}^{2}}+{{11}^{2}}-9\times 11\] \[=81+121-99\] \[=202-99=103\]


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