Question

Blake has entered a mountain bike competition at Starvation Flats Bike Park. Placement in the competition is determined by a person's average speed over four laps around the course. The course itself is of a mile long. If Blake completed the four laps in 12 minutes, then his average speed around the track is miles per hour.

Answer 1

The course is 1 mile long.

Blake ran around the course 4 times in 12 minutes.

That's 4 miles in 12 minutes.

60 / 12 = 5.

4 * 5 = 20 miles.

12 * 5 = 60 minutes = 1 hour.

So Brandon runs 20 miles an hour.

Answer 2

thanks @Nurali

Answer 3

Anytime.