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SSC Sample Paper Mock Test-12 SSC CGL Tear-II Paper-1

  • question_answer
    \[\frac{{{(7.5)}^{3}}+1}{{{(7.5)}^{2}}-65}\]is equal to

    A) 2.75     

    B)  \[\frac{9}{5}\]      

    C)  4.75    

    D)  8.5

    Correct Answer: D

    Solution :

    \[\frac{{{(7.5)}^{3}}+1}{{{(7.5)}^{2}}-6.5}=\frac{(7.5+1)[{{(7.5)}^{2}}-7.5\times 1+1]}{{{(7.5)}^{2}}-6.5}\] \[=\frac{8.5\times [{{(7.5)}^{2}}-6.5]}{{{(7.5)}^{2}}-6.5}=8.5\]


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