## anonymous 4 years ago How many combinations are possible if a committee of 3 is chosen from a group of 25 people?

1. ParthKohli

obviously 25c3. Because we are choosing 3 from 25.

2. anonymous

There is a total of 2,300 combinations.

3. anonymous

*are

4. ParthKohli

$$\Large \color{Black}{\Rightarrow 25c3 = {25! \over (25 - 3)! \times 3!} }$$

5. ParthKohli

Looks like someone just answered it.

6. anonymous

Remember - this is a combination problem, so you want to do 25 C 3. When you do that, you are finding out the total number of combinations that you could possibly have. Also, remember that combinations can repeat.

7. anonymous

8. ParthKohli

Yes.

9. anonymous

10. anonymous

thanks

11. anonymous

You're very welcome! =)

12. anonymous

Sorry - @ParthKohli - I'm not sure what you mean?

13. ParthKohli

Maybe the moderators will tell you about it

14. anonymous

Did I do something wrong?

15. anonymous

Did I do something wrong? What do the moderators need to tell me about - I'm confused.

16. anonymous

@LyraElizabethAdams It's probably that you should show the steps or help them get the answer rather than just blurt it out.

17. anonymous

OH, I see! Okay - sorry! I thought that since I put the explanation beneath the answer, that was pretty much the same. I'll remember that next time. Thanks! :)