Răspuns:
c = joc de constructii
p=puzzle
c = 115, p= 72
4c + 5p = 820
2c + 4p= 518 (inmultim cu 2)
4c + 5p = 820
4c + 8p= 1036
scadem ec 2 - ec1
4c + 8p - 4c - 5p = 1036-820
3p = 216
p= 72
2c + 4*72 = 518
2c + 288 = 518
2c = 518 - 288
2c = 230
c = 115
