## comput313 How many combinations are possible if a committee of 3 is chosen from a group of 25 people? one year ago one year ago

1. ParthKohli

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

There is a total of 2,300 combinations.

*are

4. ParthKohli

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

5. ParthKohli

Looks like someone just answered it.

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. comput313

8. ParthKohli

Yes.

10. comput313

thanks

You're very welcome! =)

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

13. ParthKohli

Maybe the moderators will tell you about it

Did I do something wrong?

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

16. Calcmathlete

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