- #1
Hummingbird1
- 1
- 0
9 greeks, 17 finns, 7 russians, 11 chinese and 8 swedish students are studying in groups. A group can consist of one or more persons. If a group has two or more persons of the same nationality, it must also have at least one person representing another nationality. The question is: in how many different ways can the 52 students be divided into groups?