Răspuns :
2p+3u=280lei
3p+2u=245lei
5p+5u=525lei
1p+1u=105lei
2p+2u=210lei
1u=280-210
1u=70lei
1p=105-70
1p=35lei
3p+2u=245lei
5p+5u=525lei
1p+1u=105lei
2p+2u=210lei
1u=280-210
1u=70lei
1p=105-70
1p=35lei