Question

number of ways in which 4 people can be seated in a row containing 7 seats​

Answer 1

Answer:

24 ways.............

Answer 2

Given:

Total number of people: 4

Total number of seats: 7

To find:

We need to find the total number of ways where 4 people can be seated in a row which contains 7 seats.

Solution:

In a row, there are 7 seats.

First person can sit in 7 ways.

Second person can sit in 6 ways.

Third person can sit in 5 ways.

Fourth person can sit in 4 ways.

So, total number of ways is equal to $=7\times6\times5\times4=840$

Therefore, total number of ways equal to 840.