27 )
20 bidoane × 9 hl ulei = 180 hl de ulei → erau in depozit
180 hl : 2 = 90 hl de ulei s-a pus in sticle de 50 dl
90 hl = 90 000 dl
90 000 dl : 50 dl = 1 800 sticle de 50 dl
90 hl de ulei → in sticle de 2 litri
90 hl = 9 000 litri
9 000 litri : 2 litri = 4 500 sticle de 2 litri
1 800 + 4 500 = 6 300 sticle → au fost necesare
