Question

Irwin rode his bicycle from one end of a trail to another and back at a speed of 20 miles per hour. If the trail is 4 miles long, for how many hours was Irwin riding?

A.0.2 hours

B.0.4 hours

C.2.5 hours

D.5.0 hours

Answer 1

I think it's 2.5

(I don't want to sound to sure, but I took the test and I know it's not 5.0)

Answer 2

D

Explanation: