In ideal regenerative Rankin cycle receives 50000 kg/hr of steam throttled with three open feedwater heaters, steam enters the turbine at 15.356 Mpa and 700.356 C. It is condensed in the condenser at a pressure of 150.356 kPa. Steam extracted at the following points: 15.0356 Mpa, 10.0356 Mpa and 5.0356 Mpa to enter the open feedwater heaters simultaneously. A.) Determine the extracted steams from the turbine, in kg/s. Calculate the thermal efficiency of the (b) cycle, % and (c) engine, %.