Question

    A and B together can knit a sweater in 255 hours, B and

    C can knit it together in 170 hours, while A and C can knit it together in 204 hours. How many hours will A, B and C together take to knit the sweater?
    A 119 Correct Answer Incorrect Answer
    B 136 Correct Answer Incorrect Answer
    C 153 Correct Answer Incorrect Answer
    D 102 Correct Answer Incorrect Answer

    Solution

    The correct answer is B

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