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Discussion :: Time and Work

  1. If A, B and C together can finish a piece of work in 4 days. A alone in 12 days and B in 18 days, then C alone can do it in?
    2. A.
    21 days
    B.
    15 days
    C.
    12 days
    D.
    9 days

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    Workspace

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    Answer : Option D

    Explanation :

    C = 1/4 - 1/12 “ 1/18 = 1/9 => 9 days

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