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

It is currently 24 Jul 2014, 23:11

Close

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
Your Progress

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

One box contains 30 purple balls and 20 red balls, another

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Senior Manager
Senior Manager
avatar
Joined: 02 May 2004
Posts: 313
Followers: 1

Kudos [?]: 5 [0], given: 0

GMAT Tests User
One box contains 30 purple balls and 20 red balls, another [#permalink] New post 25 Aug 2007, 23:35
95. One box contains 30 purple balls and 20 red balls, another box contains 15 purple balls and 35 red balls, if Wendy randomly chooses one box and draws one ball from it, what will be the possibility that the ball will be purple?


A. 3/10
B. 3/20 
C. 9/10
D. 9/20
E. 7/20
VP
VP
User avatar
Joined: 08 Jun 2005
Posts: 1157
Followers: 6

Kudos [?]: 106 [0], given: 0

GMAT Tests User
 [#permalink] New post 26 Aug 2007, 01:13
1/2*30/50+1/2*15/50 = 45/100 = 9/20

The answer is (D)

:-D
  [#permalink] 26 Aug 2007, 01:13
    Similar topics Author Replies Last post
Similar
Topics:
A box contains red and blue balls only. If there are 8 balls Economist 1 25 Oct 2009, 04:19
One box contains 30 purple balls and 20 red balls, another johnycute 3 08 Nov 2006, 15:39
A box contains some Blue balls and 9 Red balls. If the conocieur 2 05 Nov 2005, 01:58
There are 20 purple balls and 30 yellow balls in box A. DLMD 8 13 Apr 2005, 13:40
One box contains 30 green balls and 20 red balls, another awab75 3 23 Aug 2004, 14:30
Display posts from previous: Sort by

One box contains 30 purple balls and 20 red balls, another

  Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Privacy Policy| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

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®.