6. From a class of 20 people, a team of three students is formed to participate in mathematics, Russian language, and informatics olympiads. In this class, all students excel academically. How many ways are there to form the team of olympiad participants, if each member of the team participates in one olympiad?
6. We can select a participant for the mathematics olympiad in twenty ways, for the Russian language olympiad in nineteen ways, and for informatics in eighteen ways. In total, this results in 6840 ways $(20 \times 19 \times 18=6840)$.

Answer: 6840 ways to form the team.