IBPS RRB Officer Scale 1 Model Paper 11

18 litres of pure water was added to a vessel containing 80 litres of pure milk. 49 litres of the resultant mixture was then sold andsome more quantity of pure milk and pure water was added to the vessel in the ratio of 2 : 1. If the resultant ratio of milk to water inthe vessel was 4 : 1, what was the quantity of pure milk added to the vessel.