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    Question

    A solution contains milk and water in the ratio 4:1. If 25

    litres of the 75-litre solution is removed and then 10 litres of water is added, what is the quantity of water in the final mixture?
    A 17 litres Correct Answer Incorrect Answer
    B 32 litres Correct Answer Incorrect Answer
    C 20 litres Correct Answer Incorrect Answer
    D 15 litres Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Total quantity of mixture after removing 25 litres = 75 - 25 = 50 litres

    So, quantity of water in the 50 litres mixture = 50 × (1/5) = 10 litres

    So, quantity of water in the final mixture = 10 + 10 = 20 litres

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