Răspunsuri

2014-02-07T16:22:46+02:00
A=alina; r=radu; m=mihai
a+r+m=188
r=ax2 => a=r/2
r=m-13=>m=r+13

=>a+r+m=188
r/2+r+r+13=188 => 5r=350; radu=70 castane
a=r/2 din datele problemei => alina=70/2=35 castane
m=r+13 => mihai=70+13=83 castane