Question

Raluca are de 4 ori mai multe timbre decat Alexandra si de 3 ori mai putine timbre decat Mircea.
Cate timbre are fiecare daca Mircea are cu 176 mai multe timbre decat Raluca.

Answer 1

a= Raluca
b= Alexandra
c= Mircea

a=4b sau b=a/4
c=3a sau a=c/3
c=a+176

3a=a+176 => 2a=176 => a=88
b= a/4 => b= 88/4 => b= 22
c=3*88 => c= 264

Answer 2

Raluca       I---I---I---I---I
Alexandra  I---I
Mircea       I---I---I---I---I+176    

R = 4*A
R = M:3 
   ⇒ M = 3*R
M = R+176

3R = R+176
3R-R=176
2R=176
R=176:2
R= 88 timbre
R=4*A
88=4*A
A=88:4
A=22 timbre
M=3*R
M=3*88
M=264 timbre