Ti so phan tram cua xi mang la 1.100/(1+2+6)%=100/9%=11,11%
Ti so phan tram cua cat la 2.100/(1+2+6)%=29%=22,22%
Ti so phan tram cua soi la 6.100/(1+2+6)%=6/9%=66,67%
D/S...........
Thong cam may minh bi loi nen ko danh dau dc. Ban nao xem thong nhe !!!!