## Task B-3.4.

A restaurant offers its guests a selection of cold meat cuts, fish pâté, and vegetable salad for appetizers. For soup, guests can choose from chicken soup, beef soup, fish soup, broccoli soup, and asparagus soup. For the main course, the restaurant offers a fish, meat, or vegetarian plate, and for dessert, a vegan cake or vegan ice cream. If a guest chooses one dish from each course, what is the probability that they will randomly select a completely vegetarian meal (a meal without meat and fish)?