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      Question

      A is thrice as efficient as B and C is twice as

      efficient as B. What is the ratio of number of days taken by A, B and C when they work individually?
      A 2 : 6 : 3 Correct Answer Incorrect Answer
      B 2 : 6 : 3 Correct Answer Incorrect Answer
      C 1 : 2 : 3 Correct Answer Incorrect Answer
      D 3 : 1 : 2 Correct Answer Incorrect Answer
      E 1 : 3 : 2 Correct Answer Incorrect Answer

      Solution

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