There are 6 people in a group that walk into a restaurant. The only table open is a 4-person table. In how many different ways can 4 people be seated at the table if we don't care where the 4 people sit at the table?
1 Answer
Feb 12, 2017
15
Explanation:
This is a combinations problem, in that seating persons A, B, C, D is the same as seating D, C, B, A.
We can solve this using the combinations general formula:
Substituting in