1 hr 46 min at 60 mph
0 hours are in 20 min an hour is 60 min
8 hours, 20 minutes
610 min / 60 = 10.167 hours.
106 minutes = 1hour 46minutes
2 hours
5 hours, 50 minutes
60 min = 1 hour so 375 min = 6 hours 15 minutes.
1.7667 hours.
320 min = 51/3 hours = 5hours 20minutes
5.5 hours.
2 hours