Kyle wants to buy a truck with a fuel capacity of at least 80 liters. Which of the following is the smallest tank capacity that will suit Kyle’s needs? [One gallon = 3.785 liters]

Explanation

Set up and solve an equation that expresses the gallons-to-liters proportion. Letting x equal the gallon equivalent of 80 liters:
1/3.785=x/80
3.785x=80
x=80/3.785~21.14
Among the five alternatives, choice (1) provides the smallest tank size that will accommodate 21.14 gallons (80 liters).