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SSC Sample Paper SSC CHSL (10+2) Sample Test Paper-6

  • question_answer
    A can do a piece of work in 70 days and B is 40% more efficient than A. The number of days taken by B to do the same work is

    A)  40 days                       

    B)  60 days

    C)  50 days           

    D)         45 days

    Correct Answer: C

    Solution :

     \[A:B={{D}_{2}}:{{D}_{1}}\] \[\Rightarrow \]\[100:140={{D}_{2}}:70\] \[\Rightarrow \]\[100\times 70=140\times {{D}_{2}}\] \[\Rightarrow \]\[{{D}_{2}}=\frac{100\times 70}{140}=50\] days


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