I run 12 miles in 90 minutes. What is my average speed in miles per hour? Think carefully first, then make a decision:
User
First convert 90 minutes to hours: 90 minutes / 60 minutes / hours = 1.5 hours. In 1 hour, I run 12 miles / 1.5 hours = 8 miles / hour. So, the answer is 8.
Assistant