Question

    A, B and C can do a piece of work in 11 days, 20 days

    and 55 days respectively. If B works daily and is supported by A and C on alternate days beginning with A, then in how many days will the work be finished?
    A 12 Correct Answer Incorrect Answer
    B 10 Correct Answer Incorrect Answer
    C 9(1/3) Correct Answer Incorrect Answer
    D 8 Correct Answer Incorrect Answer

    Solution

    The correct answer is C

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