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

It is currently 29 Aug 2014, 02:11

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

Which of the following CANNOT be the median of the three

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Senior Manager
Senior Manager
avatar
Joined: 17 Aug 2005
Posts: 394
Location: Boston, MA
Followers: 1

Kudos [?]: 7 [0], given: 0

GMAT Tests User
Which of the following CANNOT be the median of the three [#permalink] New post 24 May 2006, 15:43
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 1 sessions
Which of the following CANNOT be the median of the three positive integers x, y, and z?

A) x
B) z
C) x+z
D) (x+z)/2
E) (x+z)/3

This question is from OG11. Can/should we assume that x, y and z are positive integers such that x<y<z?
Senior Manager
Senior Manager
avatar
Joined: 17 Aug 2005
Posts: 394
Location: Boston, MA
Followers: 1

Kudos [?]: 7 [0], given: 0

GMAT Tests User
 [#permalink] New post 24 May 2006, 18:44
When answering the question I did not make the assumption and plugged in to get the answer (incorrectly). Is this a normal assumption to make? Pardon my ignorance, but you never know.

I guess if you really look at the question you can infer the assumption is made based on the answers. ..
Senior Manager
Senior Manager
avatar
Joined: 11 May 2006
Posts: 263
Followers: 1

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

GMAT Tests User
Re: PS-Integers [#permalink] New post 24 May 2006, 22:21
buckkitty wrote:
Which of the following CANNOT be the median of the three positive integers x, y, and z?

A) x
B) z
C) x+z
D) (x+z)/2
E) (x+z)/3

This question is from OG11. Can/should we assume that x, y and z are positive integers such that x<y<z?


i think there is no need for this assumption. The answer is C.

given x > 0, y >0, z > 0

lets look at the answers:

A) x this is possible as the numbers can be y < x < z (or z < x < y)

B) z this is possible (similar reason as in A)

C) x + z
now x + z > x and x + z > z so x+z can not be the median as it is greater than 2 out of the 3 numbers

D) (x + z)/2 , y could be (x + z)/2 hence one seq could be x < y < z
so this could be a median

E) (x + z)/3 , this is also possible (same reason as D)
SVP
SVP
avatar
Joined: 30 Mar 2006
Posts: 1741
Followers: 1

Kudos [?]: 25 [0], given: 0

GMAT Tests User
Re: PS-Integers [#permalink] New post 24 May 2006, 23:19
iced_tea wrote:
buckkitty wrote:
Which of the following CANNOT be the median of the three positive integers x, y, and z?

A) x
B) z
C) x+z
D) (x+z)/2
E) (x+z)/3

This question is from OG11. Can/should we assume that x, y and z are positive integers such that x<y<z?


i think there is no need for this assumption. The answer is C.

given x > 0, y >0, z > 0

lets look at the answers:

A) x this is possible as the numbers can be y < x < z (or z < x < y)

B) z this is possible (similar reason as in A)

C) x + z
now x + z > x and x + z > z so x+z can not be the median as it is greater than 2 out of the 3 numbers

D) (x + z)/2 , y could be (x + z)/2 hence one seq could be x < y < z
so this could be a median

E) (x + z)/3 , this is also possible (same reason as D)


True we dont have to assume here.......

Even if we do you will see that x+z is always a greater than x and z
hence for 3 numbers the greatest number can never be the median
Re: PS-Integers   [#permalink] 24 May 2006, 23:19
    Similar topics Author Replies Last post
Similar
Topics:
Which of the following could be the median Countdown 0 14 Aug 2013, 02:37
Which of the following CANNOT be the median of the four dreambeliever 6 11 Dec 2011, 08:22
1 Which of the following CANNOT be the median of the four cons goldgoldandgold 10 27 Sep 2009, 17:35
Experts publish their posts in the topic which of the following cannot be the median tejal777 3 07 Jul 2009, 04:25
X is a positive integer Set S = Which cannot be the median bmwhype2 1 29 Oct 2007, 10:09
Display posts from previous: Sort by

Which of the following CANNOT be the median of the three

  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®.