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    Question

    Quantity of water in a 500 litres mixture (Milk + Water)

    is 100 litres less than the quantity of milk in it. Find the quantity of water to be mixed so that the quantity of milk in the mixture becomes 50% of the whole mixture.
    A 80 litres Correct Answer Incorrect Answer
    B 100 litres Correct Answer Incorrect Answer
    C 160 litres Correct Answer Incorrect Answer
    D 150 litres Correct Answer Incorrect Answer

    Solution

    Quantity of water in the mixture = {(500 - 100)/2} = 200 litres

    So, quantity of milk in the mixture = (500 - 200) = 300 litres

    Total quantity of the mixture if quantity of milk in the mixture becomes 50% = 300 × (100/50) = 600

    So, quantity of water needs to be mixed = (600 - 500) = 100 litres

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