Harry ran for 5 miles. He started at 10:30 and finished at 11:20. What was Harry's average speed in miles per hour?

I got the answer: 6.25mph But the answer i have to choose from are:
3
4
5
6

3 answers

5/50 = x/60

50x = 300

x = 6 mph
Thank you, Ms. Sue!!
You're welcome, Cale.