Odpowiedź:
3)
1 h = 60 min
a) 25 min ; 120 km/h
25/60 = 5/12
5/12 * 120 = 5/1 * 10 = 50 km
b) 20 min ; 75 km/h
20/60 = 1/3
1/3 * 75 = 75/3 = 25 km
c) 15 min ; 80 km/h
15/60 = 1/4
1/4 * 80 = 80/4 = 20 km
d) 12 min ; 55 km/h
12/60 = 1/5
1/5 * 55 = 55/5 = 11 km
e) 45 min ; 60 km/h
45/60 = 9/12 = 3/4
3/4 * 60 = 180/4 = 45 km
f) 40 min ; 45 km/h
40/60 = 4/6 = 2/3
2/3 * 45 = 90/3 = 30 km
Szczegółowe wyjaśnienie:
