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

 It is currently 03 May 2015, 17:23

### 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

# Companies and contracts

 Question banks Downloads My Bookmarks Reviews Important topics
Author Message
TAGS:
Intern
Joined: 23 Nov 2006
Posts: 1
Followers: 0

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

Companies and contracts [#permalink]  23 Nov 2006, 10:18
Hello,

There are 70 companies signed a contract A and 70 companies signed a contract B. 40 % among them signed both contracts A and B. What is the total number of companies?

A: 100
B: 112
C: 116
D: 84
E: 98
SVP
Joined: 01 May 2006
Posts: 1805
Followers: 8

Kudos [?]: 98 [0], given: 0

[#permalink]  23 Nov 2006, 10:26
Welcome to the GMATClub !

(A) for me

Let set :
> X : the total number of companies
> A : number of companies that signed the contract A
> B : number of companies that signed the contract B

By drawing a Venn diagram, we obtain:

X = A + B - 0,4*X
<=> 1,4*X = 140
<=> X = 100
Director
Joined: 05 Feb 2006
Posts: 902
Followers: 1

Kudos [?]: 51 [0], given: 0

[#permalink]  23 Nov 2006, 23:57
Yes, you can answer it quite quickly using Venn diagram.
Intern
Joined: 13 Oct 2006
Posts: 5
Followers: 0

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

[#permalink]  25 Nov 2006, 04:42
We can answer this in many way ,but using venn diagram will help you a lot.
The answer is A
[#permalink] 25 Nov 2006, 04:42
Similar topics Replies Last post
Similar
Topics:
1 Linda and Angela contract 9 23 Sep 2011, 01:16
HELP - use of contractions 1 07 Oct 2009, 01:51
1 Using contractions in essays 11 10 Dec 2006, 14:45
Company provides plumbing and heating contracts. Marketing 5 20 Aug 2006, 11:34
The new contract forbids a strike by the transportation 12 06 Jun 2005, 22:17
Display posts from previous: Sort by

# Companies and contracts

 Question banks Downloads My Bookmarks Reviews Important topics

 Powered by phpBB © phpBB Group and phpBB SEO Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.