B6) please no hand writing solution)

On a winter day, the outside air has a temperature of 15C and a relative humidity of 70%.

1. If outside air is brought inside and heated to room temperature of 20C without adding moisture, what is the new relative hu-midity? Answer: 6%
2. If the room volume is 60 m', what mass of water must be added to the air by a humidifier to raise the relative humidity to 40%? Answer: 0.36 kg