Question

A committee of 15 members sits around a table. In how many ways can they be seated if the "President" and "Vice-President" sit together?

Answer 1

Answer:

(13! * 2) ways.

Step-by-step explanation:

According to the question we can assume that the president and the Vice President are counted among the 15 members.

In that case the number of ways when the President and Vice President will be sitting together will be:

(13! * 2) ways.

13 is written inspite of having 15 members because, we have considered President and Vice President as one, as they are sitting together. And since they can interchange seats so 2 is multiplied.