A container filled of milk water mixture contains 75 milk 5 litres of this mixture is replaced by wa...........

Quantitative Aptitude ( CCS) Mixture and Alligation

A container filled of milk-water mixture contains 75% milk. 5 litres of this mixture is replaced by water. Next, 10 l of the mixture is replaced by water. If the final percentage of milk in the container is 54%, find the initial quantity of mixture in the container.

50 l

40 l

60 l

70 l

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Explanation:

Let initial quantity of mixture = x l
initial quantity of milk = 0.75x l
So 0.75x (1 – 5/x) (1 – 10/x) = 0.54 x
Solve, (x-5)(x-10) = 18x²/25
Use options to check the answer.

Hence, option 1 is the correct answer.

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