Răspuns:
3mingi..............4papusi..........120lei
5mingi.............8papusi............220lei
inmultim prima relatie cu 2 pentru a putea compara
3•2=6mingi.........4•2=8papusi.......120•2=240lei
aflam diferenta de pret
240-220=20lei
aflam diferenta de mingi
6-5=1 deci o mingie costa 20 lei
aflam cat costa 3mingi
3•20=60lei
aflam cat costa 4papusi
120-60=60lei
aflam pretul unei papusi
60:4=15lei
15•7=105lei costa 7 papusi
20•4=80 lei costa 4 mingi
