Question

A car uses 8 gallons of gasoline to travel 192 miles. How many gallons are used to go 144 miles? *

Answer 1

6 gallons

Explanation:

You can find this using the ration method.

If, 8 gallons : 192 miles

x gallons : 144 miles

We must find the value of x, which is the number of gallons used to travel 144 miles.

Cross multiply the ratios.

192 x = 8 × 144

192 x = 1152

x = 1152 ÷ 192

x = 6

∴ It takes 6 gallons to travel 144 miles.