Question

How many ways can five people be seated on five chairs?​

Answer 1

Ответ:

There are 5 choices for the first person to sit, 4 choices for the second person to sit, 3 choices for the third person to sit, 2 choices for the fourth person to sit, and only 1 choice for the fifth person to sit. So the total number of ways 5 people can be seated on 5 chairs is:

5 × 4 × 3 × 2 × 1 = 120

Therefore, there are 120 ways that five people can be seated on five chairs.