a)150 cm=15 dm
0,02 km=200 dm
1/20 dam = 0,05 dam=5 dm
Suma tuturor muchiilor=4(15+200+5)
=4x220
=880 m
b)V=15x5x200 dm³ sau litri
=15000 litri sau 15 kl
c)La 15 kl avem inaltime de 5 dm
La 1,2 kl avem inaltime de x dm
x=(1,2·5)/15=0,4 dm
d)0,5 litri ___________ 1 sec
15000 litri _________ y
y=15000/0,5=30000 sec
60 sec _________ 1 min
30000 sec _______ z
z=30000/60=500 min