Răspuns:
4 kg ardei..........5 kg struguri.............81lei
6kg ardei...........7kg struguri...............115lei
2kg ardei...........5 kg struguri ............x
4 kg ardei..........81÷5=16,2lei
1kg ardei............16,2÷4=4,5lei
2kg ardei...........4,5×2=9lei
7kg struguri...........81÷4=20,25
1kg struguri...........20,25:7=2,89
5 kg struguri.......2,89×5 =14,45