A stream of warm air with a dry-bulb temperature of 40C and a wet-bulb temperature of 32C

Question:

A stream of warm air with a dry-bulb temperature of 40°C and a wet-bulb temperature of 32°C is mixed adiabatically with a stream of saturated cool air at 18°C. The dry air mass flow rates of the warm and cool airstreams are 8 and 6 kg/s, respectively. Assuming a total pressure of 1 atm, determine
(a) The temperature,
(b) The specific humidity, and
(c) The relative humidity of the mixture.