Răspuns :
P+G+M=924 P+G=670 G+M=562 Inlocuim in prima 670+M=924 aflam pe M =924-670=254 inlocuim in ecuatia G+M=562 Si aflam pe G=562-254=308 Apoi aflam pe P din P+G=670 deci P=670-308=362 Deci Petrisor=362 timbre ,George=308 timbre,Miruna=254
p+g+m=924
p+g=670
g+m=562
m=924-670=254 timbre are Miruna
p=924-562=362 timbre are Petrisor
g=562-254=308 timbre are George
p+g=670
g+m=562
m=924-670=254 timbre are Miruna
p=924-562=362 timbre are Petrisor
g=562-254=308 timbre are George