You are running 10 mph at a 6 min. pace.
You are running 9 miles per hour.
6.4mph
11/2 miles in 15 minutes = 6 mph
5.68 miles per hour.
Running one mile in nine minutes is running at 6.66 miles per hour.
You are running at 30 miles per hour.
If you run at 10 miles per hour for 25 minutes you will have covered 4.167 miles.
5.36 Miles per hour
7mph
4 mph
131/3 mph