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      Question

      A mixture contains 40 ml water and rest тАШxтАЩ ml milk.

      When 0.5x ml of water is added to the mixture, the quantity of water becomes 2/5th of the mixture. Find the value of тАШxтАЩ.
      A 120 Correct Answer Incorrect Answer
      B 150 Correct Answer Incorrect Answer
      C 200 Correct Answer Incorrect Answer
      D 240 Correct Answer Incorrect Answer

      Solution

      According to the question,
      Quantity of water after addition of 0.5x ml water = (40 + 0.5x)
      Total quantity of the mixture = 40 + 0.5x + x = (40 + 1.5x)
      Therefore,
      (2/5)(40 + 1.5x) = (40 + 0.5x)
      Or, 80 + 3x = 200 + 2.5x
      Or, 0.5x = 120
      Or, x = 240

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