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    Question

    A and B can do a piece of work in 18 days. B and C

    together can do it in 30 days. If A is twice as good a workman as C, find in how many days B alone can do the work?
    A 100 days Correct Answer Incorrect Answer
    B 90 days Correct Answer Incorrect Answer
    C 80 days Correct Answer Incorrect Answer
    D 75 days Correct Answer Incorrect Answer

    Solution

    The correct answer is B

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