How many different seating orders are there for eight people sitting in a circle?
Question
How many different seating orders are there for eight people sitting in a circle?
Solution
When arranging people in a circle, one way to think about it is to fix one person's position and then arrange the remaining people. This is because in a circular arrangement, there is no distinct "first" position, so all arrangements are considered rotations of each other.
So, if we fix one person's position, we are left with 7 people to arrange.
The number of ways to arrange n distinct items is given by the formula n!, which stands for n factorial, and is calculated as n*(n-1)(n-2)...32*1.
So, the number of ways to arrange the 7 remaining people is 7!, which is 7654321 = 5,040.
Therefore, there are 5,040 different seating orders for eight people sitting in a circle.
Similar Questions
How many ways can 8 people be seated in a round table if two specific people need to sit together?
In how many different ways can five friends sit for a photograph of five chairs in a row?
In how many ways can 8 Indians and, 4 American and 4 Englishman can be seated in a row so that all persons of same nationality sit together?
In how many ways 4 girls and 6 boys can be seated in a row so that no two girls are together?
The number of ways, in which 5 girls and 7 boys can be seated at a round table so that no two girls sit together is
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.