4 hours and 30 minutes.
There are 7 hours between 7:30 PM and 2:30 AM. To calculate this, you can break it down: from 7:30 PM to midnight is 4.5 hours, and from midnight to 2:30 AM is an additional 2.5 hours, totaling 7 hours.
6 hours.
If one is am and the other is pm, there are 7 hours in this period. If they are both am or pm, there are 5 hours in this period.
3 hours.
There are seven hours between 730 am and 230 pm. 0.5 + 4 + 2.5 = 7 [1/2 hour to 8 then 4 hours to 12 and 2.5 hours to 2:30] or 14:30 - 7:30 = 7 [14:30 on 24 hour clock is 2:30pm]
3 hours.
2.5 hours
To calculate the number of hours from 600 (6:00 AM) to 230 (2:30 PM), first note that from 6:00 AM to 2:00 PM is 8 hours. Then, from 2:00 PM to 2:30 PM is an additional 30 minutes. Therefore, the total time from 600 to 230 is 8 hours and 30 minutes.
10 - 3 = 7 hours.
5 and 1/2
The time from 8 AM to 7 PM is 11 hours. This is calculated by counting the hours from 8 AM to 12 PM (4 hours) and then from 12 PM to 7 PM (7 hours), which totals 11 hours.
6 and 1/2