There are 81 liters of pure milk in a container. One-third of the milk is removed and replaced with an equal quantity of water. Then, one-third of the...
Question
There are 81 liters of pure milk in a container. One-third of the milk is removed and replaced with an equal quantity of water. Then, one-third of the resulting mixture is taken out and replaced again with the same amount of water. What is the ratio of milk to water in the final mixture?