Răspuns:
a) 2 sticle de 1 l + 2 sticle 2l +2 sticle 2 l= 2l+4l+4l= 2+8=10 l
b) 2 galeti de 5 l + 2 galeti 10l + 2 galeti 15 l= 10 l+20 l+30 l=60 l
