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

It is currently 30 Sep 2014, 16:14

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

Morgan Stanley is hosting an investment conference in sunny

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Director
Director
User avatar
Joined: 14 Oct 2003
Posts: 592
Location: On Vacation at My Crawford, Texas Ranch
Followers: 1

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

Morgan Stanley is hosting an investment conference in sunny [#permalink] New post 26 Nov 2003, 14:12
Morgan Stanley is hosting an investment conference in sunny Phoenix and the investors attending the conference are offered to either play tennis or golf. 90% of the attendees who know how to play tennis also know how to play golf, whereas, 18% of the attendees do not know how to play either sport and will stay in their hotel rooms and do their homework to prepare for their breakout meetings. If 30% of the conference attendees do not how to play tennis, then how many attendees know how to play golf?

1)38.0%
2)46.5%
3)66.0%
4)75.0%
5)84.5%
Kaplan Promo CodeKnewton GMAT Discount CodesManhattan GMAT Discount Codes
Senior Manager
Senior Manager
avatar
Joined: 12 Oct 2003
Posts: 252
Location: USA
Followers: 1

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

 [#permalink] New post 26 Nov 2003, 19:22
Explanation please!!!!
Intern
Intern
User avatar
Joined: 04 Oct 2003
Posts: 42
Location: Silicon Valley, CA
Followers: 0

Kudos [?]: 1 [0], given: 0

If this answer is correct [#permalink] New post 26 Nov 2003, 23:07
Say T is number of tennis player
G is number of golf player

Then 90% of T play golf too
T = 70% of total

=> T&G = .9 * 70% = 63%
now G (that don't play tennis) = (100-18)-70 = 12

G = (T & G) + (G & not Tennis players) = 63+12 = 95

This is a long method and took me about 4 mins to solve. Is there a shorter method to this.

Titleis, is this answer correct?
Director
Director
avatar
Joined: 13 Nov 2003
Posts: 801
Location: BULGARIA
Followers: 1

Kudos [?]: 20 [0], given: 0

 [#permalink] New post 27 Nov 2003, 02:57
30% of all do not know how to play tennis, so 70% know to play tennis and golf. 90% of 70% is 63%( who play both) and 7% play only tennis and 12% can play only golf. Total amount of players is 82%-7=75% know how to play golf
Director
Director
User avatar
Joined: 14 Oct 2003
Posts: 592
Location: On Vacation at My Crawford, Texas Ranch
Followers: 1

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

 [#permalink] New post 27 Nov 2003, 06:38
75% is Correct - you guys are good!
Director
Director
User avatar
Joined: 13 Nov 2003
Posts: 971
Location: Florida
Followers: 1

Kudos [?]: 21 [0], given: 0

 [#permalink] New post 27 Nov 2003, 09:04
yessssss....!!!
:twisted:
SVP
SVP
User avatar
Joined: 30 Oct 2003
Posts: 1798
Location: NewJersey USA
Followers: 4

Kudos [?]: 35 [0], given: 0

 [#permalink] New post 13 Jan 2004, 22:53
I used the following formula

Total = G + T + N - B

B - Both tennis and Glof
G - Total Golf
T - Total Tennis
N - Neither

N = 18
30% dont know how to play tennis
so T = 70
Also 90% people who play tennis play golf as well
so B = 63

100 = G + 70 + 18 - 63
G = 75
GMAT Club Legend
GMAT Club Legend
avatar
Joined: 15 Dec 2003
Posts: 4318
Followers: 22

Kudos [?]: 164 [0], given: 0

 [#permalink] New post 13 Jan 2004, 23:06
On questions like these, I just draw a diagram. It is so much easier to understand IMO. I would have drawned one if only I knew how to :cry:
_________________

Best Regards,

Paul

Manager
Manager
User avatar
Joined: 26 Dec 2003
Posts: 227
Location: India
Followers: 1

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

 [#permalink] New post 14 Jan 2004, 00:37
Anandnk ur formula is good. Its easy to remember and saves time too. Thanks
Director
Director
User avatar
Joined: 14 Oct 2003
Posts: 592
Location: On Vacation at My Crawford, Texas Ranch
Followers: 1

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

 [#permalink] New post 14 Jan 2004, 06:41
anandnk wrote:
I used the following formula

Total = G + T + N - B

B - Both tennis and Glof
G - Total Golf
T - Total Tennis
N - Neither

N = 18
30% dont know how to play tennis
so T = 70
Also 90% people who play tennis play golf as well
so B = 63

100 = G + 70 + 18 - 63
G = 75


Anandank,

This is a really old question with the answer already confirmed. Why are you responding to it now?
SVP
SVP
User avatar
Joined: 30 Oct 2003
Posts: 1798
Location: NewJersey USA
Followers: 4

Kudos [?]: 35 [0], given: 0

 [#permalink] New post 14 Jan 2004, 15:10
Hmm,

I am just answering all the questions for practicing. I just thought of mentioning the formula. Many people who dont know this formula will learn it when they hit the question.
  [#permalink] 14 Jan 2004, 15:10
    Similar topics Author Replies Last post
Similar
Topics:
Experts publish their posts in the topic HBS Hosts 20th Annual Alternative Investment Conference StacyBlackman 0 20 Jan 2014, 22:36
Morgan Stanley Early Insights Program CanuckDudette 1 18 Jul 2010, 01:44
Ibanking with morgan stanley or goldman sachs bakfed 3 03 Feb 2010, 18:00
3 Morgan Stanley Summer Interns... nink 0 28 Jan 2009, 07:18
Morgan Stanley is hosting an investment conference in sunny Paul 1 09 Nov 2004, 20:54
Display posts from previous: Sort by

Morgan Stanley is hosting an investment conference in sunny

  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®.