25 ngày 100% dung tui bấm ruì không tin cứ thử
25 ngay chuan 10000000000000000000000000000000000000000000000000000000000000%
25 la 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
ooooooooooooooooooooooooooooooooooooooooo%
25 la chuan 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%
Nếu có thêm 100 hs nữa thì tổng số hs là
500 + 100 = 600 [ hs]
Nêu có thêm 100 hs thì cả trường sẽ ăn hết trong số ngày là
[ 30 x 500 ] : 600 = 25 [ hs ]
Đáp số : 25 hs