Question

Two groups collect litter along the side of a road. It takes each group 5 minutes to clean up a 200-yard section. How long does it take to clean up 2 miles? Explain how you solved the problem.

Answer 1

5 minutes ... 200 yards
x minutes = ? ... 2 miles = 3520 yards

To convert 2 miles to yards, you have to multiply 2 by 1760, because 1 mile equals to 1760 yards: 2 * 1760 = 3520 yards.

If you would like to know how long does it take to clean up 2 miles, you can calculate this using the following steps:

5 * 3520 = 200 * x
17600 = 200 * x    /200
x = 17600 / 200
x = 88 minutes

Result: It will take 88 minutes.