tong moi cua 2 kho thoc la 475 - 25 - 50 = 400
ta co so do :kho A:|.......|.......|.......|
kho B |.......|.......| tong la 400(gap ruoi la 3/2)
tong so phan la 3 + 2 = 5(phan)
kho A luc dau co so tan thoc la: 400 / 5 x 3 +25 =265(tan) CHUC BAN HOC GIOI!