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    Question

    120 litres of a solution contains 48 litres of water.

    How much of this solution should be removed so that the quantity of milk becomes 42 litres?
    A 25 litres Correct Answer Incorrect Answer
    B 50 litres Correct Answer Incorrect Answer
    C 75 litres Correct Answer Incorrect Answer
    D 35 litres Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Initial quantity of milk = 120 - 48 = 72 litres Ratio of milk and water = 72:48 = 3:2 Let the quantity of mixture to be removed be y litres. So, 72 - (3y/5) = 42 → (3y/5) = 30 → y = 50 litres

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