Question

    W and X together can complete a work in 40 days. X and Y

    together can complete the same work in 60 days. If W, X and Y all work together, then the same work gets completed in 30 days. How many days will W and Y together take to complete the same work? 
    A 45 days Correct Answer Incorrect Answer
    B 40 days Correct Answer Incorrect Answer
    C 50 days Correct Answer Incorrect Answer
    D 36 days Correct Answer Incorrect Answer

    Solution

    The correct answer is B

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