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    Question

    P and Q can do a piece of work in 20 days and 12

    respectively, P started the work alone and then after 4 days Q joined him till the completion of the work. How long did the work last?
    A 10 days Correct Answer Incorrect Answer
    B 20 days Correct Answer Incorrect Answer
    C 15 days Correct Answer Incorrect Answer
    D 6 days Correct Answer Incorrect Answer
    E 12 days Correct Answer Incorrect Answer

    Solution

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