Answer:
3mph
Explanation:
Speed = distance/time
10 miles in 2 hours is equal to 5mph. (10 divided by 2)
2 miles in 2 hours is equal to 1mph. (2 divided by 2)
To find an average, add the number and divide by the number of groups.
5 + 1 = 6.
6 divided by 2 = 3.
This makes his average speed 3mph.