Saved Problem 03.017- Multifluid manometer The water in a tank is pressurized by air, and the pressure is measured by a multifluid manometer as shown in the figure. Determine the gage pressure of air in the tank if h1= 0.4 m, h2=0.6 m, and h3 0.8 m. Take the densities of water, oll, and mercury to be 1000 kg/m³, 850 kg/m³, and 13,600 kg/m3, respectively. Air ! Water Oil hy h₂ Mercury The gage pressure of air in the tank is | kPa.