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      Question

      A mixture contains 30 ml water and rest β€˜x’ ml milk.

      When 0.6x ml of water is added to the mixture, the quantity of water becomes 2/5th of the mixture. Find the value of β€˜x’.
      A 360 Correct Answer Incorrect Answer
      B 450 Correct Answer Incorrect Answer
      C 500 Correct Answer Incorrect Answer
      D 300 Correct Answer Incorrect Answer
      E 600 Correct Answer Incorrect Answer

      Solution

      According to the question,
      Quantity of water after addition of 0.6x ml water = (30 + 0.6x)
      Total quantity of the mixture = 30 + 0.6x + x = (30 + 1.6x)
      Therefore,
      (2/5)(30 + 1.6x) = (30 + 0.6x)
      Or, 60 + 3.2x = 150 + 3x
      Or, 0.2x = 90
      Or, x = 450

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