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      Question

      A solution contains 40% sugar and the rest water. After

      adding 25 liters of water, we get another solution where the percentage of sugar drops to 20%. This solution is then combined with 15 liters of 100% sugar solution. What will be the ratio of sugar to water in the final mixture?
      A 5: 8 Correct Answer Incorrect Answer
      B 1: 1 Correct Answer Incorrect Answer
      C 2: 5 Correct Answer Incorrect Answer
      D 3: 2 Correct Answer Incorrect Answer
      E 1: 3 Correct Answer Incorrect Answer

      Solution

      Let the initial quantity of the solution = 100y┬а Sugar = 40y┬а Water = 60y┬а {40y}/{60y + 25} = 1/4 160y = 60y + 25┬а 100y = 25┬а y = 0.25┬а Sugar = 40y = 10┬а Water = 60y + 25 = 40┬а Required ratio = (10 + 15)/{40} = 5: 8

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