It is currently 24 Jan 2018, 03:45

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# At a conference, one team is made up of 4 men and 5 women. Four presen

Author Message
TAGS:

### Hide Tags

Manager
Joined: 04 Jun 2010
Posts: 110
Concentration: General Management, Technology
Schools: Chicago (Booth) - Class of 2013
GMAT 1: 670 Q47 V35
GMAT 2: 730 Q49 V41
At a conference, one team is made up of 4 men and 5 women. Four presen [#permalink]

### Show Tags

04 Oct 2010, 21:12
1
This post was
BOOKMARKED
00:00

Difficulty:

25% (medium)

Question Stats:

82% (01:30) correct 18% (02:01) wrong based on 55 sessions

### HideShow timer Statistics

At a conference, one team is made up of 4 men and 5 women. Four presenters are chosen to present the team's findings in front of the entire conference. How many different groups of presenters can be chosen from the team if a team cannot be composed of men only or women only? (Two groups of presenters are considered different if at least one presenter is different.)

(A) 120
(B) 126
(C) 180
(D) 420
(E) 460

Any quick way to solve this? I only solve it by splitting to 3 different scenarios. Takes way too much time.
[Reveal] Spoiler: OA

_________________

Consider Kudos if my post helped you. Thanks!
--------------------------------------------------------------------
My TOEFL Debrief: http://gmatclub.com/forum/my-toefl-experience-99884.html
My GMAT Debrief: http://gmatclub.com/forum/670-730-10-luck-20-skill-15-concentrated-power-of-will-104473.html

Retired Moderator
Joined: 02 Sep 2010
Posts: 792
Location: London
Re: At a conference, one team is made up of 4 men and 5 women. Four presen [#permalink]

### Show Tags

04 Oct 2010, 22:08
2
KUDOS
2
This post was
BOOKMARKED
rafi wrote:
At a conference, one team is made up of 4 men and 5 women. Four presenters are chosen to present the team's findings in front of the entire conference. How many different groups of presenters can be chosen from the team if a team cannot be composed of men only or women only? (Two groups of presenters are considered different if at least one presenter is different.)

(A) 120
(B) 126
(C) 180
(D) 420
(E) 460

Any quick way to solve this? I only solve it by splitting to 3 different scenarios. Takes way too much time.

No of ways = All ways to choose - ways using just men - ways using just women = C(9,4)-C(5,4)-C(4,4) = 126 - 5 - 1 = 120

_________________
Manager
Joined: 19 Jul 2009
Posts: 50
Location: baltimore, md
Schools: kellogg, booth, stern, ann arbor
Re: At a conference, one team is made up of 4 men and 5 women. Four presen [#permalink]

### Show Tags

05 Oct 2010, 08:14
1
KUDOS
i got A. but i think i did it the long way.

if we want at least 1 sex per group, then we can have
3 women, 1 man
3 men, 1 woman
2 women, 2 men

3 women, 1 man = 5C3 * 4C1 = 40
3 men, 1 woman = 4C3 * 5C1 = 20
2 women, 2 men = 5C2 * 4C2 = 60

40 + 20 + 60 = 120 total
_________________

Paaaaayyy Meeeee!!!!!

Non-Human User
Joined: 09 Sep 2013
Posts: 14145
Re: At a conference, one team is made up of 4 men and 5 women. Four presen [#permalink]

### Show Tags

30 Jul 2017, 09:34
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________
Re: At a conference, one team is made up of 4 men and 5 women. Four presen   [#permalink] 30 Jul 2017, 09:34
Display posts from previous: Sort by