A steam power plant operating on a simple ideal Rankine cycle maintains the boiler at 6000 kPa,

Question:

A steam power plant operating on a simple ideal Rankine cycle maintains the boiler at 6000 kPa, the turbine inlet at 600°C, and the condenser at 50 kPa. Compare the thermal efficiency of this cycle when it is operated so that the liquid enters the pump as a saturated liquid against that when the liquid enters the pump 11.38C cooler than a saturated liquid at the condenser pressure.