▪Răspuns :
I + T = 559
T + A = 600
I + A = 531
2 I + 2 T + 2 A = 1690
I + T + A = 1690 : 2
I + T + A = 845
559 + A = 845
A = 845 - 559
A = 286 ( puncte are Andrei )
I = 531 - 286
I = 245 ( puncte are Irina )
T = 559 - 245
T = 314 ( puncte are Teodor )