SOLUTION: An elementary school has n classes with 20 students each. In how many ways can the school choose a team of k students in such a way that at least one class has multiple team memb

Algebra ->  Permutations -> SOLUTION: An elementary school has n classes with 20 students each. In how many ways can the school choose a team of k students in such a way that at least one class has multiple team memb      Log On