6 hours 30 minutes
From 9:30 AM to 6 PM is a total of 8.5 hours. If you take away one hour for lunch, that leaves you with 7.5 hours of work time.
7
10.5 + 24*k hours where k is any integer.
From 8:30 AM to 5:00 PM is a total of 8 hours and 30 minutes. This can be calculated by counting the hours from 8:30 AM to 5:00 PM, which is 8 hours, plus the additional 30 minutes.
6 hours and 30 minutes.
6 hours 30 minutes
From 9:30 AM to 6 PM is a total of 8.5 hours. If you take away one hour for lunch, that leaves you with 7.5 hours of work time.
8 and 1/2
7
10.5 + 24*k hours where k is any integer.
6:15am to 5pm is 10 hours and 45 minutes.
It is 9.5+24*n hours where n is an integer.
From 8:30 AM to 5:00 PM is a total of 8 hours and 30 minutes. This can be calculated by counting the hours from 8:30 AM to 5:00 PM, which is 8 hours, plus the additional 30 minutes.
1700 hours
12 hours
12 hours