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      Question

      P can do a piece of work in 10 days. Q can do it in 16

      days. With the help of R, they finish the work in 4 days. In how many days can R alone do the whole work?
      A 13(4/11) days Correct Answer Incorrect Answer
      B 12(2/3) days Correct Answer Incorrect Answer
      C 11(1/7) days Correct Answer Incorrect Answer
      D 11(1/5) days Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

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