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SSC Sample Paper SSC CGL - Sample Paper-16

  • question_answer
    A does \[\frac{7}{10}\] part of work in 15 days. After that he completes the remaining work in 4 days with the help of B. In how many days will A and B together do the same work?

    A) \[10\frac{1}{3}\,\text{days}\]                 

    B) \[12\frac{2}{3}\,\text{days}\]

    C) \[13\frac{1}{3}\,\text{days}\]     

    D) \[8\frac{1}{4}\,\text{days}\]

    Correct Answer: C

    Solution :

    Trick Remaining work \[=\frac{1-7}{10}=\frac{3}{10}\] part \[\because \] (A + B) take 4 days to do \[\frac{3}{10}\] of work. \[\therefore \] (A + B) will do the work in             \[4\times \frac{10}{3}\text{days}\]             \[=\frac{40}{3}=13\frac{1}{3}\text{days}\]       


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