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      Question

      Aarif, Arun, and Abraham can do work in 12, 15, and 24

      days, respectively. They all begin together. Aarif leaves the work 1 day, Arun 3 days and Abraham 4 days before its completion. In how many days is the work finished?
      A 4 Correct Answer Incorrect Answer
      B 3 Correct Answer Incorrect Answer
      C 1 Correct Answer Incorrect Answer
      D 2 Correct Answer Incorrect Answer

      Solution

      Aarif       Arun       Abraham 12           15           24                120 10           8             5 Let, they do not leave and do some extra work. Extra Work=10×1+8×3+5×4=54 Total work =120+54=174units Time taken =174/23days. =7(13/23)days

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