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50km*1,3h=65km
80km:4=20km/15min
20km*3=60km
65km+60km=125km
Odp: Ten samochod przebyl droge 125km.
45minut - 80km/h
1h 18min = 1 18/60 * 50 = 78/60 * 50 = 65 km
45 min = 3/4 h 3/4 * 80 = 60 km
65+60 = 125km