Cooking oil is delivered to your restaurant in 5-gallon buckets. For easier pouring, the oil is stored in one-liter containers. How many one-liter containers are needed to completely empty the 5-gallon bucket?

One U.S. gallon is about 3.785 liters, so a 5-gallon bucket holds about 5 × 3.785 = 18.925 liters. Eighteen one-liter containers hold only 18 liters, so you need a nineteenth container for the remaining oil. The correct choice is 19.

AI-written and checked against the verified answer.