Răspuns:
A+I+M = 720 LEI
A-45 = I+45 => A = I +45+45 = I+90
M = I:3 => I = 3×M
A |____|____|____|+90
Eu |____|____|____|
M |____|
Avem 7 segmente egale +90 = 720
720 - 90 = 630
630 : 7 = 90 ( un segment egal)
A = 3×90+90 = 270+90 = 360
I = 3×90 = 270
M = 90
Verificare:
360+ 270+90 = 720
Alin are 360 lei
Ionel are 270 lei
Marian are 90 lei