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A jar contains only 12 liters of milk and the rest is water. A new mixture in which the concentration of milk is 30%, is to be formed by replacing the jar mixture. How many liters of the mixture shall be replaced with pure milk if initially there were 48 liters of water in the mixture?

A jar contains only 12 liters of milk and the rest is water. A new mixture in which the concentration of milk is 30%, is to be formed by replacing the jar mixture. How many liters of the mixture shall be replaced with pure milk if initially there were 48 liters of water in the mixture? Correct Answer 7.5 litres

Milk ∶ water

12 : 48

Ratio = 1 : 4

Initial mixture = 12 + 48 = 60 litres

Using the Alligation method,

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Remaining : Replaced

Initial Mixture = 8 unit

8 units ⇒ 60 liters

1 unit = 7.5 litre

 7.5 liters of mixture of water and milk is replaced with pure milk.

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