# 20 Litres of a Mixture Contains Milk and Water in the Ratio 3:1:

20 litres of a mixture contains milk and water in the ratio 3:1. Then the amount of milk to be added to the mixture so as to have milk and water in the ratio 4:1 is:

- 6 litres
- 7 litres
- 4 litres
- 5 litres

quantity of milk in the given mixture = 20*3/4 = 15 litre

quantity of water in this mixture = 20-15 = 5 litre

let x litre of milk be added to given mixture to have the requisite ratio of milk and water

then = 15+x = 20

x= 20-5 = 5 answer