6 hours and 45 minutes.
36
It is 9 hours.
From 630 am to noon is 5.5 hours. From noon to 330 pm is 3.5 hours. Total =9 hours.
9 hours.
6 hours and 30 minutes.
(8.25 + 24k) hours, where k is any integer.
8 hours.
2.25 assuming both am or pm
8 hours and 30 minutes.
15 hours and 20 minutes.
11 - 3 = 8 24 - 8 = 16 Answer: 16 hours