Mixture and Alligation

Quantitative Aptitude (CHSL)

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How much water must be added to 50 litre of milk costing 10 rupees per litre so as to bring the cost of milk to 8 rupees per litre.

11.5

12.5

13.5

14.5

Explanation:

By using the allegation rule
Water: milk = 1:4 = x:50
x= 12.5

By: Pranav Gupta

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