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

It is currently 21 Sep 2014, 22:37

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

GMAT Paper test - Test Code 31

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Intern
Intern
avatar
Joined: 06 Aug 2006
Posts: 21
Followers: 0

Kudos [?]: 7 [0], given: 2

GMAT Tests User
GMAT Paper test - Test Code 31 [#permalink] New post 28 Jan 2010, 13:54
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

25% (02:48) correct 75% (01:36) wrong based on 4 sessions
Here is a question that I cannot figure out

If the Average (mean ) of 5 positive temperatures is x degrees fahrenheit, then the sum of the 3 greatest of these temperatures, in degrees Fahrenheit, could be

A) 6x
B) 4x
C) 5x/3
D) 3x/2
E) 3x/5


Please provide solutions along with your answer choice. Thank you
OA: B
Senior Manager
Senior Manager
avatar
Joined: 25 Jun 2009
Posts: 313
Followers: 2

Kudos [?]: 73 [0], given: 6

GMAT Tests User
Re: GMAT Paper test - Test Code 31 [#permalink] New post 28 Jan 2010, 14:38
loki wrote:
Here is a question that I cannot figure out

If the Average (mean ) of 5 positive temperatures is x degrees fahrenheit, then the sum of the 3 greatest of these temperatures, in degrees Fahrenheit, could be

A) 6x
B) 4x
C) 5x/3
D) 3x/2
E) 3x/5


Please provide solutions along with your answer choice. Thank you
OA: B



Lets use the POE here,

x is the average of 5 numbers and hence total = 5x

A) 6x -- greater than 5x hence invalid option
B) 4x -- Correct
C) 5x/3 -- is this is the case then rest 2 values are also equal to these values and hence this cannot be the sum of the 3 greater temp.
D) 3x/2 -- 1.5x which cant be the sum of 3 greater temp.
E) 3x/5 -- same as D

Cheers
Intern
Intern
avatar
Joined: 06 Aug 2006
Posts: 21
Followers: 0

Kudos [?]: 7 [0], given: 2

GMAT Tests User
Re: GMAT Paper test - Test Code 31 [#permalink] New post 29 Jan 2010, 03:04
Thank you nitishmahajan!
Manager
Manager
avatar
Joined: 02 Oct 2009
Posts: 197
Followers: 1

Kudos [?]: 14 [0], given: 4

GMAT Tests User
Re: GMAT Paper test - Test Code 31 [#permalink] New post 29 Jan 2010, 19:38
B; others are statistically not possible if the numbers are positive integers
Manager
Manager
User avatar
Joined: 18 Feb 2010
Posts: 174
Schools: ISB
Followers: 6

Kudos [?]: 113 [0], given: 0

GMAT Tests User
Re: GMAT Paper test - Test Code 31 [#permalink] New post 12 Mar 2010, 11:12
loki wrote:
Here is a question that I cannot figure out

If the Average (mean ) of 5 positive temperatures is x degrees fahrenheit, then the sum of the 3 greatest of these temperatures, in degrees Fahrenheit, could be

A) 6x
B) 4x
C) 5x/3
D) 3x/2
E) 3x/5


Please provide solutions along with your answer choice. Thank you
OA: B




Let the 5 numbers be 1,2,3,4,5 (since no restrictions are given). There mean is 3 (x).

Now the sum of greatest three would be 3+4+5= 12

so the answer has to be 4x....that is option B

Hope this helps !!!
_________________

CONSIDER AWARDING KUDOS IF MY POST HELPS !!!

Senior Manager
Senior Manager
avatar
Joined: 01 Feb 2010
Posts: 268
Followers: 1

Kudos [?]: 35 [0], given: 2

GMAT Tests User
Re: GMAT Paper test - Test Code 31 [#permalink] New post 13 Mar 2010, 07:11
loki wrote:
Here is a question that I cannot figure out
If the Average (mean ) of 5 positive temperatures is x degrees fahrenheit, then the sum of the 3 greatest of these temperatures, in degrees Fahrenheit, could be

A) 6x
B) 4x
C) 5x/3
D) 3x/2
E) 3x/5

Please provide solutions along with your answer choice. Thank you
OA: B


POE only can be used in this question.
Other option than B are mathmatically not possible.
Manager
Manager
avatar
Joined: 10 Aug 2009
Posts: 123
Followers: 3

Kudos [?]: 13 [0], given: 13

Re: GMAT Paper test - Test Code 31 [#permalink] New post 14 Mar 2010, 12:03
what does POE mean guys?

i just used 1,2,3,4,5 as the integers and went from there. B was the only possible answer
Senior Manager
Senior Manager
avatar
Joined: 01 Feb 2010
Posts: 268
Followers: 1

Kudos [?]: 35 [0], given: 2

GMAT Tests User
Re: GMAT Paper test - Test Code 31 [#permalink] New post 14 Mar 2010, 20:59
nickk wrote:
what does POE mean guys?

i just used 1,2,3,4,5 as the integers and went from there. B was the only possible answer


POE: Process of Elimination
Inserting answer choices and solving to see if answer choice is possible or not.
Senior Manager
Senior Manager
User avatar
Joined: 13 Dec 2009
Posts: 264
Followers: 10

Kudos [?]: 107 [0], given: 13

GMAT Tests User Reviews Badge
Re: GMAT Paper test - Test Code 31 [#permalink] New post 15 Mar 2010, 07:50
loki wrote:
Here is a question that I cannot figure out

If the Average (mean ) of 5 positive temperatures is x degrees fahrenheit, then the sum of the 3 greatest of these temperatures, in degrees Fahrenheit, could be

A) 6x
B) 4x
C) 5x/3
D) 3x/2
E) 3x/5


Please provide solutions along with your answer choice. Thank you
OA: B



Sum of all five numbers is 5x so sum of 3 greatest numbers must be greater than half of the full sum i.e. >2.5x
definitely A is impossible.
B could be a possibility as it is >2.5x
c is actually 1.67x so not possible.
D is actually 1.5x so not possible.
E is 0.6x definitely not possible

Thats why only option left is B and hence it is the answer.
_________________

My debrief: done-and-dusted-730-q49-v40

Re: GMAT Paper test - Test Code 31   [#permalink] 15 Mar 2010, 07:50
    Similar topics Author Replies Last post
Similar
Topics:
1 GMAT Paper Test Help (test code 52) phangureh 1 03 Jan 2010, 12:35
GMAT Paper Test Code 48 Section #10 phangureh 1 01 Jan 2010, 11:30
gmat paper test code 37 question 16 blover 2 22 Dec 2009, 04:17
1 Experts publish their posts in the topic Paper CR Test 31 GMATBLACKBELT 7 01 Feb 2008, 12:56
GMAT paper test code 14 - 113 questions iamba 0 16 Jun 2007, 13:03
Display posts from previous: Sort by

GMAT Paper test - Test Code 31

  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®.