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Andrey2009
a fost răspuns

Bogdan,Catelin si Adrian au 62 de timbre .Stiind ca Bogdan are 29 de timbre ,Catalin are 13 timbre ,afla cate timbre are Adrian.

Răspuns :

62-29-13=33-13=20
adrian=20 timbre

Gerby
B+C+A=62t

B=29t.

C=13t

29+13+A=62

A=20t