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    Question

    Arjun and Bheem can do a piece of work in 8 and 10 days

    respectively. If they started the work together and worked on it for 3 days, then find the time taken by B alone to complete the remaining work.
    A 3.5 days Correct Answer Incorrect Answer
    B 4 days Correct Answer Incorrect Answer
    C 3 days Correct Answer Incorrect Answer
    D 3.25 days Correct Answer Incorrect Answer
    E none of these Correct Answer Incorrect Answer

    Solution

    ATQ, Let we can assume that the total work be 40 units Arjun тАЩs one-day work will be then= 5 units┬а BheemтАЩs one-day work = 4 units┬а Then, Work done by Arjun and Bheem together in 3 days┬а = 9 x 3 = 27 days┬а Therefore, the rest work will be = 40 тАУ 27 = 13 units┬а Hence, the required number of days will be = 13/4┬а = 3.25 days

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