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SSC Sample Paper Mock Test-2 SSC CGL Tear-II Paper-1

  • question_answer
    X can complete a job in 12 days. If X and Y work together, they can complete the job in \[6\frac{2}{3}\]days. Y alone can complete the job in

    A)  10 days                       

    B)  12 days

    C)  15 days

    D)  18 days

    Correct Answer: C

    Solution :

    X's one day's work \[=\frac{1}{12}\] (X + Y)'s one day's work \[=\frac{3}{20}\] \[\therefore \]y's one day's work\[=\frac{3}{20}-\frac{1}{12}=\frac{4}{60}=\frac{1}{15}\] \[\therefore \]Number of day's taken by Y to complete the work =15 days.                


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