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    Question

    PтАЩs 5 days work is equal to QтАЩs 6 days work. If P

    and Q together can complete the work in 25 days then how much time Q will take to complete 80% of the work?
    A 60 days Correct Answer Incorrect Answer
    B 48 days Correct Answer Incorrect Answer
    C 63 days Correct Answer Incorrect Answer
    D 44 days Correct Answer Incorrect Answer

    Solution

    Ratio of efficiency of P and Q = 6:5 Let the efficiency of P and Q be 6x and 5x units per day respectively. Total work = 11x┬а├Ч┬а25 = 275x units Required time = (0.80 ├Ч┬а275x)/5x = 44 days

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