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      Question

      P and Q individually can complete the work in 38 days

      and 57 days respectively. If the time taken by R alone to complete the work is 1.25 times the time taken by P and Q together to complete the work, find the time taken by R to complete the work while working alone.
      A 16.5 days Correct Answer Incorrect Answer
      B 19.5 days Correct Answer Incorrect Answer
      C 27 days Correct Answer Incorrect Answer
      D 28.5 days Correct Answer Incorrect Answer

      Solution

      Time taken by P and Q together to complete the work = (38 Γ— 57)/ (38 + 57) = 22.8 days Time taken by R alone to complete the work = 1.25 Γ— 22.8 = 28.5 days

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