Eight hours.
4 + 24k where k is any integer.
11 hours. From 8 am to 8 pm would be 12 hours, and 7 pm is 1 hour less than that.
4 and 1/4
Use/convert the times to the 24 hour clock notation and simply subtract the two to get the answer. In 24 hour notation 7.30 am = 0730 hours 4.30 pm = 1630 hours 1630-0730=0900 = 9 hours
9 hours and 30 minutes.
5 hours and 30 minutes.
5.5
9.5
8
1 hour, 10 minutes
13 hours and 40 minutes.
3 hours and 30 minutes.
5 hours and 15 minutes.
4:30pm to 8pm is 3.5 hours or 3 hours 30 minutes.
Eight hours.
4 + 24k where k is any integer.