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

It is currently 25 Oct 2014, 11:53

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

m19 30

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Intern
Intern
avatar
Joined: 02 Jul 2010
Posts: 5
Followers: 0

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

m19 30 [#permalink] New post 07 Sep 2010, 19:50
If x = 10^{10} , \frac{x^2 + 2x + 7}{3x^2 - 10x + 200} is closest to:

* \frac{1}{6}
* \frac{1}{3}
* \frac{2}{5}
* \frac{1}{2}
* \frac{2}{3}
can someone help me find an easy way to answer this one
Manager
Manager
avatar
Joined: 25 Jun 2010
Posts: 91
Followers: 1

Kudos [?]: 23 [0], given: 0

GMAT ToolKit User
Re: m19 30 [#permalink] New post 08 Sep 2010, 05:28
Since x is too large, so x^2 would be even larger, hence you can roughly calculate the fraction as
x^2/3x^2 = 1/3.
just discard the 'x' part and the constant part, as they are too insignificant compared to 'x^2'.

Posted from my mobile device Image
Current Student
User avatar
Status: What's your raashee?
Joined: 12 Jun 2009
Posts: 1847
Location: United States (NC)
Concentration: Strategy, Finance
Schools: UNC (Kenan-Flagler) - Class of 2013
GMAT 1: 720 Q49 V39
WE: Programming (Computer Software)
Followers: 22

Kudos [?]: 202 [0], given: 52

Reviews Badge
Re: m19 30 [#permalink] New post 08 Sep 2010, 15:26
woodahy wrote:
If x = 10^{10} , \frac{x^2 + 2x + 7}{3x^2 - 10x + 200} is closest to:

* \frac{1}{6}
* \frac{1}{3}
* \frac{2}{5}
* \frac{1}{2}
* \frac{2}{3}
can someone help me find an easy way to answer this one



yeah basically it is like a "spit in the ocean" where the smaller numbers dont matter at all. so you have this huge 10^20 on top with 3*10^20 on bottom so 1/3
_________________

If you like my answers please +1 kudos!

Re: m19 30   [#permalink] 08 Sep 2010, 15:26
    Similar topics Author Replies Last post
Similar
Topics:
Experts publish their posts in the topic M19-30 Bunuel 1 16 Sep 2014, 00:07
3 M19#14 topmbaseeker 13 07 Feb 2009, 15:57
M19#13 topmbaseeker 12 07 Feb 2009, 15:25
M19 Q36 ventivish 4 12 Nov 2008, 21:26
M19 Q9 ventivish 5 12 Nov 2008, 20:38
Display posts from previous: Sort by

m19 30

  Question banks Downloads My Bookmarks Reviews Important topics  

Moderators: WoundedTiger, Bunuel



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®.