It is currently 17 Oct 2017, 23:32

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.

Close

Request Expert Reply

Confirm Cancel

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

PS - GMATPrep - Population

  post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Manager
Manager
User avatar
Joined: 28 Dec 2006
Posts: 61

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

PS - GMATPrep - Population [#permalink]

Show Tags

New post 28 Apr 2007, 18:07
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

HideShow timer Statistics

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Could anyone please explain how to solve this ?
Attachments

GMATPrep7_AnsD.JPG
GMATPrep7_AnsD.JPG [ 37.98 KiB | Viewed 685 times ]

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

GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 10 Apr 2007
Posts: 4318

Kudos [?]: 762 [0], given: 5

Location: Back in Chicago, IL
Schools: Kellogg Alum: Class of 2010
 [#permalink]

Show Tags

New post 28 Apr 2007, 20:44
The easy and right way: Since you have 11 districts if the smallest one has to be within 10% of the largest. The lowest number will have all 10 other districts with the same size.

(132,000 - X) / 10 = 1.1X

132,000 - X = 11X

132,000 = 12X

X = 11,000

Remember if you can't do the right math, it is multiple guess so at least narrow it down.

Pick the middle one as the first test since you can narrow it down from there.
132,000 - 10,900 = 121,100
121,100 / 10 = 12100
10900 x 1.1 = 11990

Since that was to small go to the next one up. 11,000
132,000 - 11,000 = 121,000
121,000 / 10 = 12000
11000 x 1.1 = 12000

Since 12,000=12,000 the answer is D, 11,000

Kudos [?]: 762 [0], given: 5

  [#permalink] 28 Apr 2007, 20:44
Display posts from previous: Sort by

PS - GMATPrep - Population

  post reply Question banks Downloads My Bookmarks Reviews Important topics  


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

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

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®.