RBI Assistant Prelims 2016 Sitting 3 Paper

Jar A has x litre milk and jar B has y litre water. 80% milk and 20% water was taken out from the respective jars and were mixed in jar C. The respective ratio between milk and water in jar C was 2:1. When 28 litre pure milk was added to jar C, the total quantity of mixture in jar C became 76 litre. What was the value of x ?