Question

Luis has two cars. His minivan gets 18 miles per gallon of gasoline and his compact gets 24 miles per gallon. How many gallons of gasoline will he save if he travels 216 miles using the compact instead of the minivan

Answer 1

The compact will save 3 miles a gallon. The compact will have 12 miles on 24 miles a gallon while the minivan will have 9 miles on 18 miles per gallon.