Question

There are 28 students in a homeroom. How may different ways can they be chosen tobe elected President, Vice President, and Treasurer?

Answer 1

Since we have 28 students, there are 28 different ways for choosing the President. Then, there are 27 different ways for the Vice President and 26 ways for the Treasurer.

Therefore, there are

`3P28=28\cdot27\cdot26=19656`

ways to choose a President, Vice President and Treasurer. Therefore, the answer is: 19656