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    Question

    A mixture (milk and water) contains 40% milk and rest 90

    litres water. How much milk should be added to the mixture to make the ratio of milk to water in the mixture 8:3?
    A 130 litres Correct Answer Incorrect Answer
    B 115 litres Correct Answer Incorrect Answer
    C 135.5 litres Correct Answer Incorrect Answer
    D 133 litres Correct Answer Incorrect Answer
    E 180 litres Correct Answer Incorrect Answer

    Solution

    Initial quantity of milk in the mixture = 90 × (0.40/0.60) = 60 litres
    Let the quantity of milk added be ‘x’ litres
    According to the question,
    (60 + x)/90 = 8/3
    => x = 240– 60
    => x = 180
    Therefore, quantity of milk added = 180 litres

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