Susan is the chairperson of her committee she asked to create a sub committee of five members how many possible ways can she do this if there are 30 members

Answer 1

You want to know how many combinations of 5 can you select out of 30

in general the formula for how many combinations of size x you can select from a group of size n is:

C(n, x) = n!/(x!(n-x)!)

for our problem, n = 30 and x = 5

C(30,5) = 30!/(5! * 25!)

In case you don't know the meaning of factorial:

5! = 5 * 4 * 3 * 2 * 1