Question

In how many ways can 3 singers be selected from 5 who came to an audition?

1
10
5
60

Answer 1

I wanna say 10.

Answer 2

You can make a tree diagram, but it may take too much work. ☺

Answer 3

I believe you use the formula

(n!)/ (n-r)!(r!)

where n is total number...and r is the number you want

so

5 factorial is 120

(5-3)factorial is 2 factorial which is 4

3 factorial is 6

so 6 times 4 is 24

so 120/24...is 5