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comput313

  • 3 years ago

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

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  1. ParthKohli
    • 3 years ago
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    obviously 25c3. Because we are choosing 3 from 25.

  2. LyraElizabethAdams
    • 3 years ago
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    There is a total of 2,300 combinations.

  3. LyraElizabethAdams
    • 3 years ago
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    *are

  4. ParthKohli
    • 3 years ago
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    \(\Large \color{Black}{\Rightarrow 25c3 = {25! \over (25 - 3)! \times 3!} }\)

  5. ParthKohli
    • 3 years ago
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    Looks like someone just answered it.

  6. LyraElizabethAdams
    • 3 years ago
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    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
    • 3 years ago
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    so 2300 is the answer?

  8. ParthKohli
    • 3 years ago
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    Yes.

  9. LyraElizabethAdams
    • 3 years ago
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    Yes, 2300 is the answer.

  10. comput313
    • 3 years ago
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    thanks

  11. LyraElizabethAdams
    • 3 years ago
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    You're very welcome! =)

  12. LyraElizabethAdams
    • 3 years ago
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    Sorry - @ParthKohli - I'm not sure what you mean?

  13. ParthKohli
    • 3 years ago
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    Maybe the moderators will tell you about it

  14. LyraElizabethAdams
    • 3 years ago
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    Did I do something wrong?

  15. LyraElizabethAdams
    • 3 years ago
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    Did I do something wrong? What do the moderators need to tell me about - I'm confused.

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

  17. LyraElizabethAdams
    • 3 years ago
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    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! :)

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