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    Question

    P can do a piece of work in 20 days, Q can complete

    double the work in 60 days and R can do the work in 40 days. If all of them together earn Rs. 3900, then find the money received by Q.
    A Rs.1200 Correct Answer Incorrect Answer
    B Rs.900 Correct Answer Incorrect Answer
    C Rs.850 Correct Answer Incorrect Answer
    D Rs.1000 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Time taken by P = 20 days Time taken by Q = 30 days Time taken by R = 40 days Let the total work be 120 units. P’s one day work = 6 units Q’s one day work = 4 units R’s one day work = 3 units Amount received by Q = 3900 × (4/13) = Rs. 1200

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