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    Question

    A and B do a work in 15 days and 25 days, respectively.

    They worked together for 5 days, after which B replaced by C and the remaining work was completed by A and C in the next 4 days. In how many days will C alone complete the same work?
    A 24 days Correct Answer Incorrect Answer
    B 20 days Correct Answer Incorrect Answer
    C 15 days Correct Answer Incorrect Answer
    D 25 days Correct Answer Incorrect Answer

    Solution

    The correct answer is B

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