Vic has three chicken houses with an average of 23,800 broilers per house. He has broilers in a house for 7 weeks and then the house is empty for 2 weeks. Vic has his operation in a cycle, starting one house at a time throughout the year.

1. How often does he start a new group of broilers?
2. How many groups are sold per year?
3. How many broilers are sold per year if there is a 4.5 percent loss?