Steam enters the high pressure turbine of a reheat cycle power plant at 3.5 mpa and 350and expands to 0.5 mpa after which it is reheated to 350°c. the steam is then expanded through the low pressure turbine to 7.5 kpa. liquid leaving the condenser at 30°c is pumped to 3.5 mpa and returned to the boiler. each turbine is adiabatic with an efficiency of 85%. the pump efficiency is 80%. the total power output of the turbines is 1000 kw. determine (a) the mass flowrate of the steam (b) the power required to drive the pump and (c) the thermal efficiency of the power plant.