IBPS RRB Officer Prelims 14 Nov 2016 Shift 2 Paper

Jar A has 36 litres of mixture of milk and water in the respective ratio of 5 : 4. Jar B which had 20 litres of mixture of milk and water, was emptiedinto jar A, and as a resultin jar A, the respective ratio ofmilk and water becomes 5 : 3.What was the quantity of waterin jar B ?