Answer:
25 gallons
Explanation:
First we want to find out how many times the car passes 120 miles in 600 miles, so we divide:
600 ÷ 120 = 5
You drive 120 miles 5 times within 600 miles.
So, if you use 5 gallons of gas for 120 miles and you drive 120 miles 5 times within 600 miles, you multiply 5 by 5:
5 × 5 = 25
Therefore, you use 25 gallons of gas driving 600 miles.