In how many different orders can Debbie, Brigitte, and Adam wait in line in the school cafeteria? What is the probability that they will be in alphabetical order?
1 Answer
May 14, 2017
6 ways.
Explanation:
The first position in line can be filled by any of the 3 people.
Then the next position in line can be filled by any of the remaining 2 people.
And then the last position is filled by the last person.
This works out to be:
There is only 1 way that they will be in line alphabetically out of the 6 possible ways, so we have:
