Odpowiedzi

2010-01-11T16:30:40+01:00
45min=2700s
2700:90=30 okrążeń
30*400m=12000m
12000m=12km
1 5 1
2010-01-11T16:31:54+01:00
45min=2700s
2700/90=30
400*30+12000m