At the airport, ten people are waiting on standby. Two seats become available, one first class and one coach. How many ways are
2 answers:
Answer:
Last Option
Step-by-step explanation:
We have 10 people and two seats. Then we must choose 2 people out of 10 to occupy the seats.
The seats are different so the order in which people feel is important.
This is a problem of permutations
For the first seat I must choose a person of between 10.
For the second seat I must choose a person from 9.
So, if we call m the number of ways in which you can assign the seats:
You might be interested in