How many different 3 people committees can be formed from a group of 25 people?
1 Answer
Jan 17, 2016
Use the combination formula,
Explanation:
This problem is a combination problem since order doesn't matter.
n = the total number of elements, in this case 25
r = the number being picked, in this case 3
Plug n and r into the formula:
=
= 2300
So, there are 2300 different committees that can be formed.
Here is a problem for you practice:
- Solve the following problem.
14 people apply for a job. Only 2 positions are available. Find the number of different combinations of employees possible.