Barbara drinks 2 pints of milk each day. How many days does it take her to drink 1 gallon of milk?
days
It takes Barbara 8 days to drink 1 gallon of milk.
There are 8 pints in a gallon, so Barbara drinks 4 pints (2 x 2) per day.
1 gallon = 8 pints
8 pints ÷ 4 pints per day = 2 days
Therefore, Barbara drinks 1 gallon of milk in 8 days.