SSC Sample Paper SSC (Group-C) Sample Test Paper-8

  • question_answer
    Tapas works twice as fast as Mihir. If both of them together complete a work in 12 days, Tapas alone can complete it in

    A)  15 days                      

    B)  18 days

    C)  20 days          

    D)       24 days

    Correct Answer: B

    Solution :

    If Tapas alone takes x days to complete the work, then \[\frac{1}{x}+\frac{1}{2x}=\frac{1}{12}\] \[\Rightarrow \]            \[\frac{2+1}{2x}=\frac{1}{12}\] \[\Rightarrow \]            \[2x=36\] \[\Rightarrow \]            \[x=18\] days


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