2hrs and 30mins
7 hours
1.5 hours.
71/2 hours IF they're both in the same day.
935
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 hours.
7 hours
1.5 hours.
7 hours and 30 minutes.
9 + 24k where k is an integer.
4 hours and 15 minutes.
7 and a half
71/2 hours IF they're both in the same day.
7.30am 8.20am 825am 830am 930am 935am 940am 1035am 1055am 11am 1200pm 1230pm 110pm 115pm 120pm 220pm 225pm 230pm 320pm
(20.75 - 9.5) hrs = 11.25 hrs = 11 hrs and 15 min
935
18.5 hours