Question

Alin,Daniel si Vladimir su 67 de timbre.Impartind nr. timbrelor lui Alin la nr timbrelor lui Dan obtinem catul 5 si restul 3.Sa se afle cate timbre are fiecare, daca Dan are jumatate din nr timbrelor.

Answer 1

A+D+V=67
A:D=5 rest 3   A=5D+3
D=V:2             V=2D

5D+3+D+2D=67
8D+3=67
8D=67-3
8D=64
D=8   Dan=8 timbre

V=2D
V=2x8
V=16  Vlad=16 timbre

A+8+16=67
A+24=67
A=67-24
A=43  Alin=43 timbre

43+8+16=67

Answer 2

A+D+V=67
A:D=5rest 3
V:2=D
3
A/___/___/___/___/___/_/
D/___/
V/___/___/
/____________________/
67
67-3=64
5+1+2=8 segmente
64:8=8 D
8x2=16 V
8x5=40
40+3=43 A
43+16+8=67