Question

Dan,Ionut si Alina au inpreuna 154 timbre.Ionut are de doua ori mai multe decat Dan si jumatate din numarul de timbre al Alinei.Cate timbre are fiecare copil?

Answer 1

SCHEMA: D /---------/ I. /----------/-----------/ 154 A /---------/-----------/------------/-----------/ REZOLVAREA: 154:7=22 timbre are Dan 22 x 2=44 timbre are Ionuț 44 x 2=88 timbre are Alina VERIFICARE: 22+44+88=154 SPER CĂ TE-AM AJUTAT

Answer 2

D+I+A=154
I=2XD
I=A:2
D=1SEG
A=2SEG
I=4SEG
154:7=22
D=22
I=22X4=88
A=22X2=44