4.04 hours or 4 hours, 2 minutes and 24 seconds
SOLUTION
--------------
Divide 303 by 75 to find out how many hours are needed.
303/75 = 4.04 hours
At 75 mph,
75 miles in 1 hour,
150 miles in 2 hours,
225 miles in 3 hours,
300 miles in 4 hours
leaving 3 miles, which takes (3/75) or 0.04 hours.
0.04 hours is (0.04*60) = 2.4 minutes
0.4 minutes is (0.4*60) = 24 seconds
So total time = 4 hours, 2 minutes and 24 seconds.
Six hours.
Four minutes.
1.96 hours, or 1 hour and 58 minutes
99 miles / 75mph = 1.32 hours, or 1 hour and 19 minutes
50 minutes
20 minutes.
11.5 hours.
8 minutes.
10 hours 4 minutes.
16 hours 17 minutes.
26 hours, 40 minutes
1 hour 52 minutes.