Question

There are 3 rest stops for every 20 miles of highway. How many rest stops would there be on 140 miles of highway?

Answer 1

21 rest stops

Explanation:

You have 3 rest stops per 20 miles.

You are traveling 140 miles.

If you break down the 140 miles into 20 mile segments, you get 7.

So, we travel 7 20mile segments. With 3 rest stops per 20, giving us 7(3)=21.