151,25
975
0 hours are in 20 min an hour is 60 min
8 hours, 20 minutes
610 min / 60 = 10.167 hours.
2 hours
5 hours, 50 minutes
An equality will do here. 260 words/4 min. = X words/15 min. 4X = 3900 X = 975 words ===========
To subtract 7 hours 25 minutes from 16 hours 15 minutes, first convert the times into minutes. 16 hours is 975 minutes (16 x 60 + 15), and 7 hours 25 minutes is 445 minutes (7 x 60 + 25). Subtracting these gives 975 - 445 = 530 minutes, which is equivalent to 8 hours and 50 minutes. Therefore, 16 hours 15 minutes minus 7 hours 25 minutes equals 8 hours 50 minutes.
320 min = 51/3 hours = 5hours 20minutes
3 hours
2 hours
1.95 hours.