Question

A van travels 240 miles on 12 gallons of gas. Find how many gallons the van needs to travel 500 miles.

Answer 1

gas needed to travel 240 miles= 12 gallons
gas needed to travel 1 mile =12/240
gas needed to travel 500 miles=(12×500)/240
$= \frac{12 \times 500}{240} \\ = 25 \: gallons$