A professional organization is planning its annual convention to be held in San Francisco. Arrangements are being made with a large hotel in which the convention will be held. Registrants for the 3-day convention will be charged a flat fee of $500 per person, which includes registration fee, room, all meals, and tips. The hotel charges the organization $20,000 for the use of the facilities such as meeting rooms, ballroom. In addition, the hotel charges $295 per person for room, meals, and tips. The professional organization appropriate $125 of the $500 fee as annual dues to be deposited in the treasury of the national office. Determine the number of registrants necessary for the organization to recover the fixed cost of $20,000.
Answer: 250 persons