Question

intr-o ferma de pasari sint 4800 de gaini si rate,aflati cite gaini si cite rate sint ,stiind ca numarul de rate este cu 800 mai mare decit al gainilor .

Answer 1

Notam : nr gaini = G
             nr rate= R
R+G=4800
R+800=G

G+G+800=4800 =>
2G=4000 =>
G=2000
R=2800

Answer 2

Gaini |-----------|               }4800
Rate  |-----------|------| }800 }
4800-800=4000 
4000:2=2000 (gaini)
2000+800=2800 (rate)
              R: 2000 gaini; 2800 rate