2024 AMC 10A Problem 9
In how many ways can juniors and seniors form disjoint teams of people so that each team has juniors and seniors?
The first team has cases.
If the teams had names, for example Team 1, Team 2, and Team 3, then there would be
cases.
cases.
Since the teams do not have names, you should divide the result in Hint 2 by , since we are counting the permutations of the teams.
(B) 1350