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    Question

    P can do a piece of work in 10 days. Q can do it in 16

    days. With the help of R, they finish the work in 4 days. In how many days can R alone do the whole work?
    A 13(4/11) days Correct Answer Incorrect Answer
    B 12(2/3) days Correct Answer Incorrect Answer
    C 11(1/7) days Correct Answer Incorrect Answer
    D 11(1/5) days Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

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