Question 70

In a mixture of 60 litres, the ratio (by volume) of milk and water is 2 : 1. If X litres of water is added in the mixture, the ratio of milk and water becomes 1 : 2, then what is the value of X?

Solution

In a mixture of 60 litres, the ratio (by volume) of milk and water is 2 : 1.

$$\frac{Milk}{Water} = \frac{40}{20} = \frac{2}{1}$$

If X litres of water is added ,

$$\frac{40}{20 + X} = \frac{1}{2}$$

X = 60

So, the answer would be option d)60.

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