Young-Helmholtz Trichromatic theory. the theory that the retina contains three different colors receptors-one most sensitive to red, one to green, one to blue-which when stimulated in combination can produce the perception of any color.
$62 (cost per guest). In 2015, the average cost of wedding catering is between $51-$73 per guest. While many couples spend significantly less than this due to banquet-style dinners, the average spend is around $60 per adult guest.The food served at a wedding reception is determined by the time of the wedding and local custom.hile many couples spend significantly less than this due to banquet-style dinners, the average spend is around $60 per adult guest. The food served at a wedding reception is determined by the time of the wedding and local custom.
How much a wedding reception venue should cost. Average costs and comments from CostHelper's team of professional journalists and community of users. A reception in a private room in a casual or ethnic restaurant, such as barbecue or Chinese, or a bar might cost as little as $50 to $250 for a room rental fee, plus a per-person cost for food and beverage that can be as little as $15 to $20. 1  Other similarly priced venues include rooms at city, county or state parks.