60 mph = 1 mile per min therefore 30 mph = 0.5 miles min thus 455mlsx2 = 910 mins or 910mls/60mins = 15hrs 4mins
That is not quite correct and also it is simpler to divide distance by speed (using same units).
455/30 = 15.16666666etc hrs = 15 hrs 10 mins.
10.5
going 60 miles an hour
601/60=10.0166 It would take 10.0166 hours to drive the 601 miles.
It would take 12 minutes to drive 20 miles at 100 mph.
It would take about 46 minutes to drive 50 miles.
2000 miles
Depends on the speed
About 5.5 hours.
it depends on your speed
Depends on your speed.
6 hours
33mins