Rowerzysta przejechał 5 km w czasie 10minut a dalsze 15minut w czasie 40minut.Jaka była jego prędkość srednia?
5km/10min = 30km/1h
15km/40min = 22.5km/1h
(30km + 22.5km): 2= 52.5 km : 2 = 26.25km/1h
Odp. Rowerzysta jechał średnio 26.25km/1h
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5km/10min = 30km/1h
15km/40min = 22.5km/1h
(30km + 22.5km): 2= 52.5 km : 2 = 26.25km/1h
Odp. Rowerzysta jechał średnio 26.25km/1h