New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    Ratio of the work done by P, Q and R in one day is 5:4:8

    respectively. They all together can complete the work in 40 days. Q and R worked on it for 20 days. In how many days P will complete the remaining work.
    A 54 days Correct Answer Incorrect Answer
    B 63 days Correct Answer Incorrect Answer
    C 88 days Correct Answer Incorrect Answer
    D 78 days Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let total amount work be = 40 x 17 = 680 units Amount of work done by Q and R in 20 days = 20 x 12 = 240 units Amount of work left = 680 – 240 = 440 Required time = 440/5 = 88 days

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