1 hour = 3,600 seconds
40 hours = 144,000 seconds
1 hour/40 secs = 3600 sec/40 sec = 90 of them.
2 minutes and 40 sec.
6.389 hours.
2 hours
43200
7 of them.
9000 sec = 2.5 hours.
440
1 hour = 60 x 60 = 3600 sec 5 hours = 5 x 3600 = 18000 sec 30 min = 1800 sec Therefore 5 hours and 30 minutes = 18000 + 1800 = 19800 sec
20 min=1,200 sec 6 hours=21,600 sec 6 hours and 20 minutes=22,800
40
100 sec = 0.02777... hour (rounded) 1 hour = 3,600 seconds