Find all School-related info fast with the new School-Specific MBA Forum
Learn more about the recent changes... close

It is currently 24 May 2013, 07:23
Customize  |  Hide

Search
Register
New posts
Unanswered

From MitDavidDv: GMAT Quant-Math Question #2

  Question banks Downloads My Bookmarks Reviews  
  Oldest Best Reply
Search for:
 
Print view
First unread post
Author Message
TAGS:
Manager
Manager
User avatar
Joined: 28 Jan 2011
Posts: 78
Location: Tennessee
Schools: Belmont University
Followers: 1

Kudos [?]: 6 [0], given: 54

From MitDavidDv: GMAT Quant-Math Question #2 [#permalink] New post 07 Apr 2011, 15:43
00:00

Question Stats:

47% (01:21) correct 52% (00:25) wrong based on 1 sessions
What is 2 2/3 - 1 1/4 divided by 1/2 - 1/6 ?

A. 17/36
B. 36/17
C. 17/6
D. 17/4
E. 51/4
1 KUDOS received
Math Forum Moderator
Joined: 20 Dec 2010
Posts: 2100
Followers: 108

Kudos [?]: 655 [1] , given: 376

GMAT Tests User
Re: From MitDavidDv: GMAT Quant-Math Question #2 [#permalink] New post 07 Apr 2011, 15:55
1
This post received
KUDOS
MitDavidDv wrote:
What is 2 2/3 - 1 1/4 divided by 1/2 - 1/6 ?

A. 17/36
B. 36/17
C. 17/6
D. 17/4
E. 51/4


\frac{2\frac{2}{3}-1\frac{1}{4}}{\frac{1}{2}-\frac{1}{6}}=\frac{\frac{8}{3}-\frac{5}{4}}{\frac{1}{2}-\frac{1}{6}}=\frac{\frac{8*4-5*3}{12}}{\frac{6-2}{12}}=\frac{\frac{32-15}{12}}{\frac{4}{12}}=\frac{32-15}{4}=\frac{17}{4}

Ans: "D"
_________________

~fluke

Find out what's new at GMAT Club - latest features and updates

1 KUDOS received
SVP
SVP
User avatar
Joined: 16 Nov 2010
Posts: 1721
Location: United States (IN)
Concentration: Strategy, Technology
Followers: 26

Kudos [?]: 228 [1] , given: 34

GMAT Tests User Reviews Badge
Re: From MitDavidDv: GMAT Quant-Math Question #2 [#permalink] New post 07 Apr 2011, 21:15
1
This post received
KUDOS
2 2/3 - 1 1/4 = 8/3 - 5/4 = (32 - 15 )/12 = 17/12

1/2 - 1/6 = (3-1)/6 = 2/6 = 1/3

So 17/12/1/3 = 17/12 * 3 = 17/4

Answer - D
_________________

Formula of Life -> Achievement/Potential = k * Happiness (where k is a constant)

Find out what's new at GMAT Club - latest features and updates

Manager
Manager
Joined: 18 Jan 2011
Posts: 244
Followers: 1

Kudos [?]: 19 [0], given: 4

GMAT Tests User
Re: From MitDavidDv: GMAT Quant-Math Question #2 [#permalink] New post 09 Apr 2011, 23:59
Solved mentally.
17/12/4/12 = 17/4
_________________

Good Luck!!!

***Help and be helped!!!****

Senior Manager
Senior Manager
User avatar
Joined: 03 Mar 2010
Posts: 461
Schools: Kelley,Tepper,Carlson,Kenan Flager,Broad
Followers: 3

Kudos [?]: 75 [0], given: 21

GMAT Tests User
Re: From MitDavidDv: GMAT Quant-Math Question #2 [#permalink] New post 10 Apr 2011, 00:10
MitDavidDv wrote:
What is 2 2/3 - 1 1/4 divided by 1/2 - 1/6 ?

A. 17/36
B. 36/17
C. 17/6
D. 17/4
E. 51/4


(2-1), (2/3-1/4) so in mixed frac: 1 5/12 => 17/12 / 1/3 = 17/4.

Is this approach correct? or is it just a fluke?
_________________

My dad once said to me: Son, nothing succeeds like success.

Manager
Manager
Joined: 18 Jan 2011
Posts: 244
Followers: 1

Kudos [?]: 19 [0], given: 4

GMAT Tests User
Re: From MitDavidDv: GMAT Quant-Math Question #2 [#permalink] New post 10 Apr 2011, 00:49
jamifahad wrote:
MitDavidDv wrote:
What is 2 2/3 - 1 1/4 divided by 1/2 - 1/6 ?

A. 17/36
B. 36/17
C. 17/6
D. 17/4
E. 51/4


(2-1), (2/3-1/4) so in mixed frac: 1 5/12 => 17/12 / 1/3 = 17/4.

Is this approach correct? or is it just a fluke?


2 2/3 - 1 1/4 can be written as (2 + 2/3) - (1 + 1/4), so (2-1) + (2/3 - 1/4) = (1) + (5/12).
Earlier we converted mixed fraction to fractions, so we can do the reverse now i.e.
(1)(5/12)

Your approach is good.
_________________

Good Luck!!!

***Help and be helped!!!****

Re: From MitDavidDv: GMAT Quant-Math Question #2   [#permalink] 10 Apr 2011, 00:49
    Similar topics Author Replies Last post
Similar
Topics:
 New posts 3 From MitDavidDv: A 700-800 Level GMAT Quant Question MitDavidDv 1 29 Mar 2011, 14:01
New posts 1 From MitDavidDv: GMAT Quant-Math Question MitDavidDv 5 07 Apr 2011, 14:20
New posts 1 EXPERTS_POSTS_IN_THIS_TOPIC From MitDavidDv: Test Day Question MitDavidDv 2 20 May 2011, 10:46
New posts 2 From MitDavidDv: GMAT Preparation Question MitDavidDv 2 01 Jun 2011, 14:19
New posts From MitDavidDv: Problem Solving Question- MGMAT CAT #2 MitDavidDv 2 11 Jun 2011, 22:16
Display posts from previous: Sort by

From MitDavidDv: GMAT Quant-Math Question #2

  Question banks Downloads My Bookmarks Reviews  
Print view
First unread post

Moderators: Bunuel, VeritasPrepKarishma, IanStewart

Search for:


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®.

Main navigation

GMAT Resources

Partners

MBA Resources

www.gmac.com|www.mba.com