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How many ways can a committe of three be made from a pool of

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Director
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How many ways can a committe of three be made from a pool of [#permalink]

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New post 30 Dec 2004, 01:11
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

How many ways can a committe of three be made from a pool of 5 male candidates and 3 female candidates if there is to be at least 1 male?

please show work

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Director
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New post 30 Dec 2004, 08:43
MMMMM
FFF

with each committe having at least 1 male

MMM
MFM
MFF

I will say 3. This sound too simple to be true. I bet there is a trick behind this. :P Anticipates OA

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New post 30 Dec 2004, 11:32
I would say 55

Total possible committees: 8*7*6/(2*3)=56
Number of committees with no males: 1
Total committees= 56-1=55

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New post 30 Dec 2004, 13:39
I'd say 15.. what is the answer?

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Director
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New post 30 Dec 2004, 17:50
55.
8C3 - 3C3 => (8 * 7) - 1 = 56 -1 = 55

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New post 30 Dec 2004, 19:17
Just to say that in my actual GMAT exam, I got a similar "committee" question. If you reach the high 40s, you better know your probability/combination concepts well.
_________________

Best Regards,

Paul

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New post 30 Dec 2004, 19:32
OA is 55 :-D

good work!

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Director
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New post 30 Dec 2004, 19:37
Paul wrote:
Just to say that in my actual GMAT exam, I got a similar "committee" question. If you reach the high 40s, you better know your probability/combination concepts well.


:-D

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  [#permalink] 30 Dec 2004, 19:37
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