It is currently 18 Oct 2017, 23:15

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.

Close

Request Expert Reply

Confirm Cancel

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

PS shortest wood

  post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Current Student
User avatar
Joined: 31 Aug 2007
Posts: 368

Kudos [?]: 163 [0], given: 1

PS shortest wood [#permalink]

Show Tags

New post 02 Aug 2008, 17:25
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

HideShow timer Statistics

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Now I'm getting worried, this question also seems suspect to me:

5 pieces of wood have an average (arithmetic mean) length os 124 cm and a median lenght of 140 cm. What is the maximum possible lenght, in cm, of the shortest piece of wood?

A) 90
B) 100
C) 110
D) 130
E) 140

I get that the 2 woods below the median sum to 200...I don't understand how BOTH being 100 in length allows the question to say that there is a SHORTEST piece of wood. If both are 100 then there is not shortest piece...so I picked A, but obviously this is wrong. WTF?

Kudos [?]: 163 [0], given: 1

Director
Director
avatar
Joined: 23 Sep 2007
Posts: 782

Kudos [?]: 235 [0], given: 0

Re: PS shortest wood [#permalink]

Show Tags

New post 02 Aug 2008, 17:50
I agree with your interpretation, but the people who wrote the question get to invent their own rules. Just move on.

Kudos [?]: 235 [0], given: 0

Manager
Manager
avatar
Joined: 15 Jul 2008
Posts: 205

Kudos [?]: 68 [0], given: 0

Re: PS shortest wood [#permalink]

Show Tags

New post 02 Aug 2008, 17:57
young_gun wrote:
Now I'm getting worried, this question also seems suspect to me:

5 pieces of wood have an average (arithmetic mean) length os 124 cm and a median lenght of 140 cm. What is the maximum possible lenght, in cm, of the shortest piece of wood?

A) 90
B) 100
C) 110
D) 130
E) 140

I get that the 2 woods below the median sum to 200...I don't understand how BOTH being 100 in length allows the question to say that there is a SHORTEST piece of wood. If both are 100 then there is not shortest piece...so I picked A, but obviously this is wrong. WTF?


just like you could say 140 as the longest, even when you have 3 140s. its fair.

Kudos [?]: 68 [0], given: 0

VP
VP
avatar
Joined: 17 Jun 2008
Posts: 1374

Kudos [?]: 406 [0], given: 0

Re: PS shortest wood [#permalink]

Show Tags

New post 02 Aug 2008, 21:08
bhushangiri wrote:
young_gun wrote:
Now I'm getting worried, this question also seems suspect to me:

5 pieces of wood have an average (arithmetic mean) length os 124 cm and a median lenght of 140 cm. What is the maximum possible lenght, in cm, of the shortest piece of wood?

A) 90
B) 100
C) 110
D) 130
E) 140

I get that the 2 woods below the median sum to 200...I don't understand how BOTH being 100 in length allows the question to say that there is a SHORTEST piece of wood. If both are 100 then there is not shortest piece...so I picked A, but obviously this is wrong. WTF?


just like you could say 140 as the longest, even when you have 3 140s. its fair.


We cannot get shortest plank at 100 cm :roll: answer should be 99
according to my calculations :evil: but noi option present here
_________________

cheers
Its Now Or Never

Kudos [?]: 406 [0], given: 0

Manager
Manager
avatar
Joined: 09 Jul 2008
Posts: 111

Kudos [?]: 42 [0], given: 1

Location: Dallas, TX
Schools: McCombs 2011
Re: PS shortest wood [#permalink]

Show Tags

New post 02 Aug 2008, 22:27
Let the pieces be a, b, c, d, e arranged from shortest to longest.

Then c must be equal to 140, the median; And a <= 140 and b <= 140

Because average = 124, (a+b) < 248 and (d+e) > 248

A 90 --> if a=90, b<=158. Does not satisfy b<140
B 100 --> if a=100, b<=148. Does not satisfy b<140
C 110 --> if a=110, b<=138. Satisfies b<140
D 130 --> if a=120, b<=118. Then 130 is not the shortest length anymore
E 140 --> if a=140, b<=108. Then 140 is not the shortest length anymore

Is it C then?

Kudos [?]: 42 [0], given: 1

Re: PS shortest wood   [#permalink] 02 Aug 2008, 22:27
Display posts from previous: Sort by

PS shortest wood

  post reply Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

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®.