Ajutor.................ex 10
![Ajutorex 10 class=](https://ro-static.z-dn.net/files/d78/ea57f6336aa0c8db4176dce3a8ac9b51.jpg)
vas +apa·1/2=128 kg
scazand cele doua relatii => ¼ · apa =46 kg
deci apa cantareste 4·46 kg=184 kg
vasul+ 184kg/2=128 kg
vasul=128kg-92kg=36kg
vasul gol cantareste 36 kg