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intr-o curte sunt 80 de pasari,gaini,rate si curci stiind ca 43 nu sunt rate, iar 38 nu sunt gaini,afla cate pasari sunt


Răspuns :

1.cate gaini sunt?
80-43=37gaini
2.cate rate sunt?
80-38=42 rate
3.cate gaini si rate sunt?
37+42=79
4. cate curci sunt?
80-79=1 curca
Curci+rate+gaini=80
curci +gaini=43
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rate=80-43=37


Curci+rate+gaini=80
Curci+rate=38
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gaini = 80-38=42

Curci=80-37-42=1