20 14 Grade 2 and 3 of Jinshan Mathematical Model
Solution: It is known that ρ brine > ρ water >ρalcohol have the same pressure on the bottom of the container. According to the formula P=ρgh, it can be seen that the greater the liquid density, the smaller the liquid depth, the smaller the liquid density and the greater the liquid depth, so the depth of the three liquids is H brine < H water < H alcohol, as shown in the figure.