It would take 12 minutes to drive 20 miles at 100 mph.
Depends on speed.
100 miles at 100 mph would take 1 hour
1hr 25mins
42 minutes
About 2 hours. 100/60 = 1.6
(100/120)*60 = 50 minutes.
100 miles
48 minutes.
It would take 15 minutes to drive 25 miles at 100 mph.
36 minutes.
3.58 hours