Răspuns :
1332 găini
cocosi-1332-120=1212
rate-1212+221=1433
Cate păsări sunt?
1332+1212+1433=3977
cocosi-1332-120=1212
rate-1212+221=1433
Cate păsări sunt?
1332+1212+1433=3977
a=gaini=1332
b=cocosi=a-120=1332-120=1212
c=rate=b+221=a-120+221=a+101=1212+101=1313
a+b+c=1332+1212+1313=3857 pasari
b=cocosi=a-120=1332-120=1212
c=rate=b+221=a-120+221=a+101=1212+101=1313
a+b+c=1332+1212+1313=3857 pasari