A solution of `KI_3` in water contains

The solution of sugar in water contains

The solution of sugar in water contains

A solution of ammonia in water contains

A solution of ammonia in water contains

A solution of milk and water contains milk and water in the ratio of 3 : 2. Another soution of milk and water contains milk and waterin the ratio of 2 : 1. Forty litres of the first solution is mixed with 30 litre of the second solution. The ratio of milk and water in the resultant solution is: