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

It is currently 16 Sep 2014, 13:48

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

If m>0 and n>0, is m+x/n+x > m/n?

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Director
Director
avatar
Joined: 12 Jun 2006
Posts: 539
Followers: 1

Kudos [?]: 14 [0], given: 1

GMAT Tests User
If m>0 and n>0, is m+x/n+x > m/n? [#permalink] New post 09 Jun 2007, 21:14
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
answer my question. It's in red.]









________________________________________________________
If m>0 and n>0, is m+x/n+x > m/n?

stmnt 1) m < n

stmnt 2) x is greater than 0

This is how I originally approached this:
Stmnt. 1 says that m is less than n. Therefore, m/n is a propper fraction. I'd think that adding any whole #, x/x, would make the fraction improper. I picked A. Wouldn't stmnt. 1 suffice in answering this? Perhaps x can be positive or negative?

Last edited by ggarr on 09 Jun 2007, 23:43, edited 3 times in total.
Senior Manager
Senior Manager
User avatar
Joined: 28 Feb 2007
Posts: 308
Followers: 1

Kudos [?]: 28 [0], given: 0

GMAT Tests User
 [#permalink] New post 09 Jun 2007, 22:39
Statement 1 is not sufficient.
reasons:
a) what if x=0.
b) try this m=2,n=4 and x=3 then YES
but if x=-3 then NO.
Director
Director
User avatar
Joined: 30 Nov 2006
Posts: 592
Location: Kuwait
Followers: 11

Kudos [?]: 154 [0], given: 0

GMAT Tests User
 [#permalink] New post 10 Jun 2007, 13:38
We really need to know something about X other than the fact that it's positive. We need to know how is X related to M and N.

Therefore, even if we combine both statements and use them as a single statement, we're still short of information to answer the question.


My Answer: E
Director
Director
avatar
Joined: 12 Jun 2006
Posts: 539
Followers: 1

Kudos [?]: 14 [0], given: 1

GMAT Tests User
 [#permalink] New post 10 Jun 2007, 14:19
Thanks UMB. I def overlooked x =ing 0. the OA is C. stmnt 1 says that m is less than n. this means that the m/n is a proper fraction. adding x/x, a whole number since x/x = 1, will make m/n an improper fraction unless x = 0. stmnt. 2 states that x is greater than 0.
CEO
CEO
User avatar
Joined: 29 Mar 2007
Posts: 2593
Followers: 16

Kudos [?]: 189 [0], given: 0

GMAT Tests User
 [#permalink] New post 10 Jun 2007, 14:45
I also thought it was A at first. Its what I picked in my 2min timing. But takin bout another minute after my alloted time, I figured out that its C.

Stmnt 1:
Since M<N>
6/7>4/5 Now lets say x=-2. 2/3<4/5 So A is NOT sufficient. We don't know whether x is negative or positive.

Stmnt 2: x>0. We dont know anything about m or n so we cannot determine anything from just this. M>N or M<N we have no idea.

UMB you can't say x=-3 for stmnt 2 b/c it says that x is greater than 0.

Now adding them together:

stmnt 1: established a relationship between m and n saying m<n>0. SO since x cannot be negative adding any positive value to m and then n will give us a greater value than m/n.

Try it even w/ fractions:

(4+1/10)/(5+1/10) equates out to 41/10/51/10--> 41/51 or 4.1/5.1 which is greater (just slightly) than 4/5.

:-D
  [#permalink] 10 Jun 2007, 14:45
    Similar topics Author Replies Last post
Similar
Topics:
4 Experts publish their posts in the topic If m > 0 and n > 0, is (m+x)/(n+x) > m/n? LM 9 10 May 2010, 08:32
If m>0 and n >0, is ((m+x)/(n+x)) > (m/n) metallicafan 3 09 Mar 2010, 19:49
If m > 0 and n > 0, is (m+x)/(n+x) > m/n 1) m < xALIx 2 22 Jun 2008, 12:33
If m>0 and n>0, is (m+x)/(n+x) > m/n? (1) m is less above720 8 23 Aug 2007, 17:44
3 Experts publish their posts in the topic If m > 0 and n > 0, is (m+x)/(n+x) > m/n? kook44 7 12 Mar 2006, 19:18
Display posts from previous: Sort by

If m>0 and n>0, is m+x/n+x > m/n?

  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®.