From 5:30 AM to 4:00 PM is a total of 10 hours and 30 minutes. To break it down, there are 11 hours from 5:30 AM to 4:30 PM, but since it ends half an hour earlier, you subtract that 30 minutes. Therefore, the total duration is 10 hours and 30 minutes.
1460
1360
9
540/4 = 132.5 hours
420 = 400 + 20 others are 310 = 400 - 90 530 = 400 +130 460 = 400 + 60 370 = 400 - 30 so as 20 is smallest the answer is 420
5 hours 30 minutes.
530 minutes is 8 hours, 50 minutes.
1460
7.75 hours
This is equivalent to 16 hours.
9
1360
Ten hours.
This is equivalent to 16 hours.
4.5
9 hours, 45 minutes
10 and a half hours