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    Question

    Suppose you have 60 litres of milk, which you can

    purchase at Rs. 35 for every 1.5 litres. How many litres of water should you add to this milk to reduce the cost of the mixture to Rs. 16.67 per litre?
    A 24 litres Correct Answer Incorrect Answer
    B 20 litres Correct Answer Incorrect Answer
    C 30 litres Correct Answer Incorrect Answer
    D 35 litres Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Cost of 1.5 litres of milk = Rs. 35 Cost of 1 litre of milk = 35/1.5 = Rs. 70/3 By Alligation, Thus, quantity of water to be added = 2 × (60/5) = 24 litres

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