Question

    A and B can complete a task in 6 and 8 days,

    respectively. They work on alternate days, with A starting the task on the first day. How many days will it take them to complete the task?
    A 6 Correct Answer Incorrect Answer
    B 6(3/4) Correct Answer Incorrect Answer
    C 6(1/2) Correct Answer Incorrect Answer
    D 6(1/4) Correct Answer Incorrect Answer

    Solution

    Work done by A in a day =1/6 Work done by B in a day = 1/8 Work done in two days = 1/6+1/8 =7/24 Work done in 6 days = 21/ 24 Work remaining = 1/8 Time required by A = ¾ Total days =6+3/4=27/4   Time required to complete the entire work = 27/4days  

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