How many combinations are possible if a committee of 3 is chosen from a group of 25 people?

Question

parthkohli · Answer

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

anonymous · Answer

There is a total of 2,300 combinations.

anonymous · Answer

*are

parthkohli · Answer

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

parthkohli · Answer

Looks like someone just answered it.

anonymous · Answer

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.

anonymous · Answer

so 2300 is the answer?

parthkohli · Answer

Yes.

anonymous · Answer

Yes, 2300 is the answer.

anonymous · Answer

thanks

anonymous · Answer

You're very welcome! =)

anonymous · Answer

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

parthkohli · Answer

Maybe the moderators will tell you about it

anonymous · Answer

Did I do something wrong?

anonymous · Answer

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

anonymous · Answer

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

anonymous · Answer

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! :)