Question

Ike's speedometer on his motorcycle is broken. He is riding at a constant speed. He times himself and finds that it takes him 1 minute and 20 seconds to ride 1 mile. How fast is Ike riding in miles per hour?

Answer 1

1 minute and 20 seconds as a decimal = 1.333

60 minutes are in an hour

60/1.333 = 45

He is driving 45 miles per hour.