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Discussion :: Time and Work

  1. A can do a piece of work in 10 days and B can do the same piece of work in 20 days. They start the work together but after 5 days. A leaves off B will do the remaining piece of work in?
    2. A.
    5 days
    B.
    6 days
    C.
    8days
    D.
    10days

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    Workspace

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    Answer : Option A

    Explanation :

    (A +B)'s 5 days work = 5 (1/10 +1/20) = ¾ 


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