Water flows from one reservoir in a \(200-\mathrm{mm}\) pipe, while water flows from a second reservoir in a \(150-\mathrm{mm}\) pipe. The two pipes meet in a "tee" junction with a \(300-\mathrm{mm}\) pipe that discharges to the atmosphere at an elevation of \(20 \mathrm{~m}\). If the water surface in the reservoirs is at \(30 \mathrm{~m}\) elevation. what is the total flow rate?