It would take 3.5 hours to drive 210 miles at 60mph.
About seven hours.
miles per hour * 7 60mph * 7 hours = 420 miles
7 hours 55 minutes.
33 hours
Fifteen hours of course !
9.5 hours if you are driving at 60mph
14.5 hours 870 miles/ 60 mph = 14.5 hours
You drove 91.25 miles.
2 hours 10 minutes.
14 hours.
5 hours 48 minutes.