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a fost răspuns

Ina ana si oana au un numar de baloane.cate baloane are fiecare,daca ina si ana au185 de baloane ,ana si oana au133de baloane,iar ina si oana au 122 baloane?

Răspuns :

CaTa1233
Ina...............I
Ana..............A
Oana.............O

I+A=185 
A+O=133
I+O=122
_________

2I+2A+2O=440
I+A+O=220
O=35
A=98
I=87

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