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Discussion :: Time and Work

  1. Two men can complete a piece of work in four days. Two women can complete the same work in eight days. Four boys can complete the same work in five days. If four men, eight women and 20 boys work together in how many days can the work be completed?
    2. A.
    1/2 day
    B.
    1(1/2) days
    C.
    1 day
    D.
    2 days
    E.
    None of these

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    Answer : Option A

    Explanation :

    Two men take four days to complete the work four men would take (2 * 4)/4 = 2 days to complete it.

    Similarly four women would take two days to complete it and 20 children would take one day to complete it.

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