1/4*600=150 rate
600-150=450 celelalte pasari
1/5*450=90 giste
fie nr gainilor a
si nr curcililor b atunci b= a/6
deoarece ratele+ gistili sint 240 ⇒curcili + gainili reprezinta 600-240=360
adica a+a/6=360⇒a=309 gaini
1/6*309=51 curci
raspuns: in ferma sint 150 rate, 90 giste, 309 gaine,51 curci