100/2=50
If you have to drive 100 miles, and you have 2 hours to do it in, I think 50 miles in each hour ought to get you there.
If you drive at an average rate of 70 miles per hour then 931miles / 70miles / hour = 13.3 hours
The average speed would be 56.75 miles per hours.
154 miles / 5.5 hours = 28 miles / hour
14.5 hours 870 miles/ 60 mph = 14.5 hours
It depend on your average speed. It you drive at an average of 60 miles per hour it will take you 904/60 hours or about 15 miles.
3.5 hours.
At an average 60 mph: 600 miles
At an average 60 mph: 9 hours
At an average 60 mph: 5 hours
At an average 60 mph: 50 hours
At an average 52 mph: 10 hours