Question

The ratio of milk and water in a mixture
of 80 liters of milk and water is 3: 2.
How much more milk should be added
to the mixture so that milk becomes
double the water?
.​

Answer 1

Explanation:

You have 3 parts milk and 2 parts water in 80 litres, which means if you divide 80 litres into 5 parts you get 16 litres per part. Therefore, you have 3*16=48 litres of milk and 2*16=32 litres of water.

In this new mixture, your 48 litres of milk must now be worth 2 parts which then means 24 litres is 1 part, 3 parts of water must be 24*3=72 litres. 72 litres of water - original 32 litres of water =40 added litres of water.