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    Question

    The ratio of time taken by P, Q and R to complete work

    alone is 3:5:2 respectively. If all three together complete the work in 4 days, then find in how many days P alone will complete three-fourth of the same work?
    A 18 days Correct Answer Incorrect Answer
    B 9.3 days Correct Answer Incorrect Answer
    C 22.8 days Correct Answer Incorrect Answer
    D 19.5 days Correct Answer Incorrect Answer
    E 12 days Correct Answer Incorrect Answer

    Solution

    Ratio of efficiency of P, Q & R = 10 : 6 : 15 So, let total work = (10x + 6x + 15x) × 4 = 124x unit Required days = 124x × 3/4 × 1/10x = 9.3 days

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