A container consists of x liters of milk. The milk in the container is adulterated by adding water equal to 50 percent

[Gmat_mission]

A container consists of x liters of milk. The milk in the container is adulterated by adding water equal to 50 percent of the milk in the container. If a person takes out 6 liters of the milk solution from the container, how many liters of water does he take out?

A. 1
B. 2
C. 3
D. 4
E. 5

Answer: B

Source: e-GMAT