Question

ANSWER THIS QUESTION QUICKLY PLS!

Nine people sit in chairs in a room.
In how many ways can four of these people be chosen to stand up?
Enter your answer in the box.

Answer 1

Explanation:

Assuming the order matters....i.e. they stand up one at a time

(question does not state how the 4 are chosen)

9 choices for first

8 choices for second

7 choices for third

6 choices for fourth

9 x 8 x 7 x 6 = 3024 ways

this is 9 P 4 = 9!/5! = 3024