Răspuns:
a) 1080 litri/ora 1ora=60min=3600sec
1080 litri / 3600 sec
1080:3600=0,3 => 0,3 l/s (debit)
b) 780 cm/min
780cm=7,8m
1min = 60sec
7,8:60=0,13 => 0,13m/s (viteza)
c) 2090mg = 2,090g (grame)
2,090g = 0,00209 kg (greutate)
1kg=1000g=1000000mg
d) 6700 dm^2
1dm^2 = 0,01m^2 (aria, suprafata)
6700x0,01=67m^2
1m^2=100dm^2