3 km = 3000m
3000m : 60min =50 m/min
1400m. : 50m/min = 28min
V-predkość=3km/h
s-droga=1400m
t=?
3km/h
3000m/60min /:60
50m/min
t=s:V
t=1400m:50m/min
t=28min
odp.przejście zajmie mu 28 minut
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3 km = 3000m
3000m : 60min =50 m/min
1400m. : 50m/min = 28min
V-predkość=3km/h
s-droga=1400m
t=?
3km/h
3000m/60min /:60
50m/min
t=s:V
t=1400m:50m/min
t=28min
odp.przejście zajmie mu 28 minut