solve fast and plz solve tomorrow ans I will be sending from 9:30 morning plz i will up vote for you

Q.1) A fluid is flowing through a pipeline network of 50 cm ID at 30C where an orificemeter with orifice diameter of 20 cm is placed to measure the flowrate. If the manometer reads 30 cm of Hg, determine the flowrate and velocity of fluid through the pipe. (Density of fluid is 987 kg/m3 and co- efficient of orificemeter is 0.6.)