Question

Find the number of ways for 15 people to sit around the table so that no 2 arrangements have the same neighbour​

Answer 1

There are 43589145600 ways that it can done .

Step-by-step explanation:

Since we have given that

Number of people = 15

Number of arrangements that have no same neighbour = 2

So, the number of ways 15 people sitting around a table = (15-1)! = 14!

So, the number of ways would be

$\dfrac{14!}{2}=43589145600$

Hence, there are 43589145600 ways that it can done .

# learn more:

https://brainly.in/question/7785828

In how many ways can 12 people sit around a table so that all shall not have the same neighbours in any two arrangements?