A container contains some amount of milk A milkman adds 200 ml of water for each one litre of milk i...........

Quantitative Aptitude ( CCS) Mixture and Alligation

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A container contains some amount of milk. A milkman adds 200 ml of water for each one litre of milk in the container. 6 litres of the mixture is sold from the container and 10 litres of milk is added to the remaining mixture. If now the ratio of milk to water in container is 25 : 3, find the initial quantity of milk in the container.

26 l

29 l

30 l

20 l

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Explanation:

Let initial quantity of milk = 10x litres, For each 1 litre, 200 ml of water is added, so after adding water, quantity of mixture become = 12x litres
Now 6 l of mixture is sold, and 10 l of milk is added
So remaining quantity is (12x – 6 +10) = (12x + 4)
In this final quantity, milk = 10x – (10x/12x * 6) + 10 = (10x + 5)
So (10x+5)/(12x +4) = 25/(25+3)
Solve, x = 2
So initial quantity of milk = 10x = 20 litres

Hence, option 4 is the correct answer.

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