At 80 km/h, the inlet temperature of air to an automobile radiator is 37.88C. Water enters at 98.98C with a flow rate of 1.89 kg/s and leaves with a temperature of 93.38C. UA for this radiator is 960.6 W/K. Determine the airflow rate and air outlet temperature for this radiator using both the "-NTU and MTD methods. Consider cp for air and water as 1.01 and 4.19 kJ/kg K, respectively. The radiator is unmixed on the air side and mixed on the water side.