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      Question

      A container holds 1280 litres of a milk and water

      mixture in the ratio of 9:7. Then, 320 litres of this mixture is removed and replaced with an equal amount of water. What will be the new ratio of milk to water in the resulting mixture?
      A 24:35 Correct Answer Incorrect Answer
      B 27:37 Correct Answer Incorrect Answer
      C 29:38 Correct Answer Incorrect Answer
      D 22:31 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Amount of milk in the resultant mixture = 9/16 × (1280 – 320) = 540 litres Amount of water in the resultant mixture = 7/16 × (1280 – 320) + 320 = 740 litres Required ratio = 540:740 = 27:37

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