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    Question

    In container P, there is 110 litres of milk and in

    container Q there is 70 litres of water. 30% of milk and 50% of water is taken out from the respective containers and are mixed in container R. How much water should be added to container R such that the ratio of milk to water becomes 3:4? MT
    A 9 litres Correct Answer Incorrect Answer
    B 16 litres Correct Answer Incorrect Answer
    C 15 litres Correct Answer Incorrect Answer
    D 7 litres Correct Answer Incorrect Answer
    E 20 litres Correct Answer Incorrect Answer

    Solution

    Quantity of milk in container R = 0.30 × 110 = 33 litres Quantity of water in container R = 0.50 × 70 = 35 litres Let x litres of water is added to the container R. According to the question, 33/(35 + x) = 3/4 Or, 132 = 105 + 3x Or, 3x = 27 Or, x = 9 Therefore, water added to container R = 9 litres

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