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Discussion :: Time and Work

  1. A can do a work in 9 days and B can do the same work in 18 days. If they work together, in how many days will they complete the work?
    2. A.
    8
    B.
    7
    C.
    6
    D.
    5
    E.
    None of these.

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    Workspace

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    Answer : Option C

    Explanation :

    One day's work of A and B = 1/9 + 1/8 = (2+1)/18 = 1/6 So, the time taken to complete the work is 6 days.

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