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2010-02-04T10:41:29+01:00
A)
25min=1500s
2min=120s
3s=3s
1min=60s
20s=20s
2h=6400s
5s=5s
b)
8h=480min
20min=20min
2h=120min
15min=15min
20h=1200min
10s=10/60 min
2010-02-04T10:44:58+01:00
1.
25*60=1500
2*60=120
3s
1*60=60
2h=120min=120*60=720
5s

2.
8h=480 min
20min
2h=120min
15min
20h=1200min
10s= 10:60=1/6 minuty