78/65 is 1.2 hours or 1 hr 12 minutes
9 minutes 13.84 seconds.
3 1/13 hours.
55.4 seconds per mile at 65mph
146 miles @ 65 mph.= 2 hrs. 14 mins. 46.15384614 secs.
15mi/65MPH = .23 hr = 13.9 minutes.
about an hour
19.5 mins
time = distance ÷ speed = 163 miles ÷ 65mph ~= 2.51 hours (just over 21/2 hours)
20/65 = 18minutes 27.7seconds
3 hours 13 minutes.
4 hours 41.5 minutes.
4 hours 16 minutes.