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Discussion :: Time and Work

  1. A can do a job in 12 days and B can do the same job in 10 days. With the help of C they can do the same job in 4 days. In how many days C alone can do this job?
    2. A.
    15 days
    B.
    14 days
    C.
    13 days
    D.
    12 days

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    Answer : Option A

    Explanation :

    A's one day work =Apti Time and work 50

    B's one day work = Apti Time and work 51

    (A+B+C)'s one day work =Apti Time and work 52

    Therefore, C's one day work = (A+B+C)'s one day work (A+B)'s one day work

    So, C's one day work =Apti Time and work 53

    Apti Time and work 54 Apti Time and work 55

    So, C will complete the work in 15 days.

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