If you went at a speed of a mile a minute, or 60 mph, you would travel 25 miles in 25 minutes. For 10 miles in this time you only have to travel at 2/5 of that speed, or 24 mph.
42.86 miles per hour.
56 mph
158.8mph for 343 miles in 2hours and 16 min
27.9 miles per hour
130.6 miles per hour.
If my calculations are right you need to travel 20 miles per hour to reach ten miles in thirty minutes.
42.86 miles per hour.
120 mph
56 mph
158.8mph for 343 miles in 2hours and 16 min
6.29*60/25 = 15.096 mph
27.9 miles per hour
60 miles an hour.
80 miles per hour.
130.6 miles per hour.
54 miles in 22 minutes = 54*60/22 = 147.2727.. miles per hour
66.7 mph