9 hours.
There are (7.5 + 24k) hours where k is an integer.
8
7 hours 15 minutes
5.5 + 24k where k is any integer.
4 hours and 15 minutes.
12 hours
9 hours.
9 hours and 30 minutes.
This is equivalent to 16 hours.
5 hours and 30 minutes.
9h 15m
5.5
There are (7.5 + 24k) hours where k is an integer.
10 & 1/2
9.5
8