Subject: mathqa
Question: in a can , there is a mixture of milk and water in the ratio 3 : 2 . if the can is filled with an additional 6 liters of milk , the can would be full and the ratio of milk and water would become 2 : 1 . find the capacity of the can ?
Option: 
A: 30
B: 36
C: 32
D: 28
Answer: B