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

  • question_answer
    If a work can be completed by A in 30 days and by Bin 60 days. Then, the number of days taken by them to complete the work, working together is

    A)  25                               

    B)  45

    C)  50                               

    D)  20

    Correct Answer: D

    Solution :

    A?s one day?s work \[=\frac{1}{30}\] B?s one day?s work \[=\frac{1}{60}\] \[\therefore \](A+B)?s one day?s work \[=\frac{1}{30}+\frac{1}{60}=\frac{1}{20}\] \[\therefore \]Both A and B working together can complete the job in 20 days.


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