8:30 7:00 to 12:00 = 5:00 12:00 to 3:30 = 3:30 Total 8:30
18½ hours
It is 4 hours.
18½ hours
9 hours and 30 minutes.
5 and a half
7
Eight and one half hours.
1230
10:30 to 3:30 is five hours.
337
830 930 1030 1130 1230 130 230 330 7 hours