Question

40 liters of mixture contains milk and water in the ratio 7:1. If 8 liters this mixture be replaced by 8 liters milk. The ratio of milk to water in the new mixture be

Answer 1

Let the amount of milk and water in 40 liter mixture is 7x and 1x

If 8 liter of mixture is replaced by 8 liter of milk

then, milk = 7x+8

water = 1 x

So,

7x + 8 + 1x = 40

The value of x comes to be 4.

Ratio of milk to water = 7x+8/1x

= 36/4 = 9/1

that is 9:1

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