Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 03 May 2015, 03:16

### 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

# Sets A, B, and C have some elements in common

Author Message
TAGS:
Intern
Joined: 11 Sep 2006
Posts: 44
Followers: 0

Kudos [?]: 3 [0], given: 0

Sets A, B, and C have some elements in common [#permalink]  06 Dec 2006, 03:08
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
Searched, but couldn't find this one. Venn type questions are the beans for my brain farts. Any lessons on approaching this with a Venn diagram would be helpful.

Sets A, B, and C have some elements in common. If 16 elements are in both A and B, 17 elements in both A and C, and 18 elements are in both B and C, how many elements do all three of the sets A, B, and C have in common?

1) of the 16 elements that are i both A and B, 9 elements are also in C.
2) A has 25 elements, B has 30 elements, and C has 35 elements.
SVP
Joined: 05 Jul 2006
Posts: 1519
Followers: 5

Kudos [?]: 115 [0], given: 39

Sets A, B, and C have some elements in common. If 16 elements are in both A and B, 17 elements in both A and C, and 18 elements are in both B and C, how many elements do all three of the sets A, B, and C have in common?

1) of the 16 elements that are i both A and B, 9 elements are also in C.
2) A has 25 elements, B has 30 elements, and C has 35 elements.

= 9

EDITED

Last edited by yezz on 06 Dec 2006, 04:16, edited 1 time in total.
Manager
Joined: 25 Sep 2006
Posts: 153
Followers: 1

Kudos [?]: 4 [0], given: 0

A

Got this question in Gmatprep.

II) does not seems to provide enough info.
We got 3 equation from the question stem, another 3 from II). 6 total.
But we got 7 unknown, which is number of:
a, b, c, ab, ac, bc and abc .
_________________

livin in a prison island...

Senior Manager
Joined: 20 Feb 2006
Posts: 373
Followers: 1

Kudos [?]: 2 [0], given: 0

I'm getting A

1) Basically tells us that there are 9 elements in all 3

2) Doesn't give us enough information to construct a Venn diagram.
Manager
Joined: 25 Nov 2006
Posts: 60
Followers: 2

Kudos [?]: 2 [0], given: 0

Option A ,Stat1 clearly shows that 9 is the no of elements common to all the three
sets.
Stat2 by itself is not Sufficient to answer.
Similar topics Replies Last post
Similar
Topics:
2 Set A, B, C have some elements in common. If 16 elements are 13 07 Apr 2011, 11:50
3 Sets A, B and C have some elements in common. If 16 elements 8 26 Sep 2009, 04:02
Set A, B, C have some elements in common. If 16 elements are 4 11 Mar 2008, 11:30
2 Set A, B, C have some elements in common. If 16 elements are in both A 13 27 Jun 2006, 02:53
Sets A, B and C have some elements in common. If 16 elements 4 26 Oct 2005, 21:08
Display posts from previous: Sort by