Question

Victior, Darius si Cristi au impreuna 78 de cartonase cu fotbalisti. Darius are jumatate din numarul de cartonase al lui Victor, iar Cristi are de 3 ori mai multe decat Darius. Cate cartonase are fiecare copil?

Answer 1

V+D+C=78
D=V/2
C=3D =3*V/2
V+V/2+3V/2=78
2V/2+V/2+3V/2=78
6V/2=78
3V=78
V=78:3
V=26   Victor
D=V/2=26/2=13 Darius
C=3D=3*13=39 Cisti