High pressure steam is at 8Mpa and 600C it passes through an isentropic turbine and the pressure drops to 6MPa and 350C, at 6MPa the steam reheated so that its temperature is now 400C, it passes through a second isentropic turbine and the pressure drops to 5MPa at 350C, 5kg/s of steam is tapped from the turbine and condensed at 5MPa the remaining steam (15kg/s) passes through a third isentropic turbine the pressure drops to 100 kPa. Find the total power output of all three turbines.