1. Presupunem ca toate ar fi pasari(curci,rate ,gaini )
167×2=334 picioare
2. Diferenta de picioare:
388-334=54 picioare
3. aflam cate oi sunt
54:2=27 oi
4. aflam cate pasari sunt
167-27=140
5. Curci |____|
} 140
Rate |____|____|
Gaini |____|____|____|____|
140:7=20
curci 20
rate 20+20=40
gaini 40+40=80
oi 27