In a mixture of 60 liters, the ratio of milk and water is 2 : 1. If the ratio of the milk and water is to be 1 : 2, then the amount of water to be further added is —

20 litres
30 litres
40 litres
60 litres

Correct Answer: 60 litres

Explanation:

Here , Ratio of milk and water in mixture of 60 litre = 2 : 1
∴ Quantity of milk = 2y = 40 litre
Quantity of water = y = 20 litre
If ratio of milk and water is to be 1 : 2, then in 40 litres of milk, water should be 80 litre
∴ Quantity of water to be added = 60 litre.

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