19:50 hours is 7:50 pm, so between then and 8:15pm is 25 minutes
48900 minutes
8 hours, 55 minutes
It is 4 hours and 15 minutes.
It is 4 hours and 30 minutes.
7 hours and 30 minutes
6 hours and 45 minutes.
6 hours and 40 minutes, or 6 and 2/3 hours.
10 hours 45 minutes !
813 minutes
It is 6 hours and 35 minutes.
9 hours, 15 minutes 9.25 hours 9 and 1/4 hours
Dividing distance travelled by speed gives 815/75 = 10.86 recurring (that is, 10.86666...) hours or 10 hours 52 minutes.