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    Question

    500 litres of mixture ‘A’ contains milk and water

    in it. If mixture ‘A’ is mixed with 700 litres of mixture ‘B’ which contains water and salt, then the ratio of quantity of milk, water and salt in the final mixture will be 7:8:5, respectively. Find the difference between quantity of water in mixture ‘A’ and mixture ‘B’.
    A 240 litres Correct Answer Incorrect Answer
    B 320 litres Correct Answer Incorrect Answer
    C 300 litres Correct Answer Incorrect Answer
    D 250 litres Correct Answer Incorrect Answer
    E 280 litres Correct Answer Incorrect Answer

    Solution

    Total quantity of mixture = 500 + 700 = 1200 litres Quantity of milk in final mixture = (7/20) × 1200 = 420 litres Quantity of water in mixture ‘A’ = 500 − 420 = 80 litres Quantity of salt in mixture ‘B’ = (5/20) × 1200 = 300 litres Quantity of water in mixture ‘B’ = 700 − 300 = 400 litres Required difference = 400 − 80 = 320 litres

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