3 hours and 15 min
7.75 hours
This is equivalent to 16 hours.
Ten hours.
This is equivalent to 16 hours.
10 and a half hours
8 hours and 30 minutes.
61/2 + 24n hours where n is an integer.
7:45 am to 6:15 pm is 10 hours 15 minutes (101/4 hours)
(8.5+24k) hours where k is an integer.
(11+24k) hours where k is an integer.
6 and 1/2