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2022-04-18 22:41:02
đổi 12dm=1,2m
Thể tích của bể là: 3 x 2 x 1,2 = 7,3 ( m3 )
Trong bể có số lít nước là: 7,3 : 100 x 75 = 5, 475 ( m3) = 5475 lít nước
Số lít nước để bể đầy là 7,3 ( m3) = 7300 lít nước
Số lít nước phải đổ thêm để đầy bể là 7300 - 5475 =1835 (l)
vậy số nước cần đổ thêm để dầy bình là 1835 lít nước
2022-04-18 22:34:42