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    Question

    X is 60% more efficient than Y, and Y alone can do a

    work in 80 days. Working together, X and Y will complete 52% of the same work in:
    A 16 days Correct Answer Incorrect Answer
    B 15 days Correct Answer Incorrect Answer
    C 18 days Correct Answer Incorrect Answer
    D 20 days Correct Answer Incorrect Answer

    Solution

    The correct answer is A

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