Question

    A container contains 40 liters of a mixture of milk and

    water in the ratio 3:1. How much water should be added to make the ratio 3:2?
    A 4 liters Correct Answer Incorrect Answer
    B 5 liters Correct Answer Incorrect Answer
    C 6 liters Correct Answer Incorrect Answer
    D 10 liters Correct Answer Incorrect Answer

    Solution

    Milk = (3/4) * 40 = 30 liters Water = (1/4) * 40 = 10 liters Let x liters of water be added. New ratio = Milk : Water = 30 : (10 + x) = 3:2 30 / (10 + x) = 3 / 2 60 = 30 + 3x 3x = 30 x = 10 liters Correct answer: d.

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