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    • Question

      Twelve men working for 9 hours a day complete a piece of

      work in 24 days. In how many days can 8 men working for 12 hours a day complete the same piece of work?
      A 27 days Correct Answer Incorrect Answer
      B 28 days Correct Answer Incorrect Answer
      C 21 days Correct Answer Incorrect Answer
      D 24 days Correct Answer Incorrect Answer

      Solution

      Work = men × hours/day × days For first group: 12×9×24=2592 man-hours For second group: men × hours/day × days = 8×12×d 96d=2592 d=2592÷96=27

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