Question

Tudor Radusi mara au impreuna 426 lei. Tudor are de 3 ori suma Marei. Iar radu si mara au ipreuna 216 lei . Afla cati lei are fiecare copil?

Answer 1

T + R + M = 426
T = 3M
R + M = 216
T = 426 - 216
T = 210
M = T : 3
M = 210 : 3
M = 70
R + M = 216
R + 70 = 216
R = 216 - 70
R = 146
VERIFICAM
210 +146 + 70 = 426

Answer 2

T+R+M=426 lei
T=3M
R+M=216 => R=216-M

Inlocuim in relatia de mai sus si avem :

3M+(216-M)+M=426
216-M=426-4M
5M=210 => M=42 lei => R=174 lei ; T=126 lei. COROANA?