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SSC Sample Paper SSC (Group-C) Sample Test Paper-7

  • question_answer
    \[(6.5\times 6.5-45.5+3.5\times 3.5)\] is equal to

    A)  10                 

    B)  9

    C)  7                 

    D)       6

    Correct Answer: B

    Solution :

     \[6.5\times 6.5-45.5+3.5\times 3.5\] \[={{(6.5)}^{2}}-2\times 6.5\times 3.5+{{(3.5)}^{2}}\] \[={{(6.5-3.5)}^{2}}={{(3)}^{2}}=9\]


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