I.
1-c
2-a
3-a
4-b
5-a
6x100/250 = 2,4%
6-c
7-d
8-b
9-b
10-a
II.
a. lichida 25g 125g 25x100/(25+125)=16,67%
b. lichida 5g 185g 5x100/(5+185)=2,63%
c. solida 12g 182g 12x100/(12+182)=6,19%
d. lichida 6g 80g 6x100/(6+80)=7% (rotunjit)
