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Ionel si maria au impreuna 10 banane.maria are cu 2 banane mai mult decat ionel..cate banane are fiecare

Răspuns :

I------I ⇒Ionel
I------I+2I ⇒Maria
I+M=10 banane
10-2=8
8:2=4 banane are Ionel
4+2=6 banane are Maria