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

It is currently 28 Jun 2016, 01:15
GMAT Club Tests

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

The population of a bacteria culture doubles every 2

  post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Senior Manager
Senior Manager
avatar
Joined: 04 Jun 2007
Posts: 373
Followers: 1

Kudos [?]: 45 [0], given: 0

The population of a bacteria culture doubles every 2 [#permalink]

Show Tags

New post 15 Jul 2007, 17:43
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

The population of a bacteria culture doubles every 2 minutes. Approx. how many minutes will it take the population to grow from 1000 to 500,000?

The OG's solution is to draw out a table showing
2 mins- 2000
4 mins- 4000
6 mins- 8000
and so on.

I just did 2*2*2*2..... till I reached an approximation of 500, which was 2^18= 512 but it took me around a minute to do it, and such a problem shouldn't take that long. Any suggestions?
Manager
Manager
User avatar
Joined: 14 Mar 2007
Posts: 236
Followers: 1

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

 [#permalink]

Show Tags

New post 15 Jul 2007, 19:52
well it is easy to go for 1/2/4/8/16/32/64/128/256/512

in less than 30 secs you have your answer.....
  [#permalink] 15 Jul 2007, 19:52
Display posts from previous: Sort by

The population of a bacteria culture doubles every 2

  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 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®.