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SSC Sample Paper Mock Test-11 SSC CGL Tear-II Paper-1

  • question_answer
    A and B together can complete a work in 3 days. They start together but after 2 days, B left the work. If the work is completed after two more days, B alone could do the work in

    A) 5 days

    B)  6 days  

    C)  9 days

    D)  10 days

    Correct Answer: B

    Solution :

    Work done by A and B in 2 days\[=\frac{1}{3}\times 2=\frac{2}{3}\]
    Remaining work \[=1-\frac{2}{3}=\frac{1}{3}\]
    Now,\[\frac{1}{3}\]work is done by A in 2 days
    \[\therefore \] Whole work will be done by A in \[2\times 3=6\] days
    \[\therefore \] B?s 1 day's work \[=\frac{1}{3}-\frac{1}{6}=\frac{2-1}{6}=\frac{1}{6}\]
    \[\therefore \] B alone can do the work in 6 days.


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