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    Question

    A container holds 1280 litres of a milk and water

    mixture in the ratio of 9:7. Then, 320 litres of this mixture is removed and replaced with an equal amount of water. What will be the new ratio of milk to water in the resulting mixture?
    A 24:35 Correct Answer Incorrect Answer
    B 27:37 Correct Answer Incorrect Answer
    C 29:38 Correct Answer Incorrect Answer
    D 22:31 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Amount of milk in the resultant mixture = 9/16 × (1280 – 320) = 540 litres Amount of water in the resultant mixture = 7/16 × (1280 – 320) + 320 = 740 litres Required ratio = 540:740 = 27:37

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