Well 60 miles at 60mph means that you will get there in an hour. However if you travel it 50 mph the journey will take you a little longer - one hour and 12 mins. but you will have used much less fuel because wind resistance will be less (air resistance is not linear, with a doubling of speed the wind resistance quadruples).
As the world needs to use less fuel those extra 12 mins are worth it so it is better driving at 50 mph.
50
50 miles = 60 minutes 5 miles = 6 minutes 15 miles = 18 minutes
25 miles
It depends on how long you drive. At 50 mph you will go 50 miles each hour. So, in two hours you will have gone 100 miles.
50 mph
If you are driving at the rate of 50 miles per hour, it will take you one hour to drive 50 miles.
850/50 = 17 hours
.42 hours
It will take 12 hours.
It will take 3hrs and 50 mins.
5.7/50 = 0.114 hour = 6minutes 50.4seconds
-- If you drive 55 mph for 11 hours, then you cover 605 miles.-- If you drove the same distance at 50 mph, it would take you 12hours 6minutes.