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

It is currently 22 Aug 2014, 06:09

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

Two giant identical poles have been planted in the ground.

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Manager
Manager
avatar
Status: exam is close ... dont know if i ll hit that number
Joined: 06 Jun 2011
Posts: 207
Location: India
Concentration: International Business, Marketing
GMAT Date: 10-09-2012
GPA: 3.2
Followers: 2

Kudos [?]: 7 [0], given: 1

Two giant identical poles have been planted in the ground. [#permalink] New post 08 Sep 2011, 17:40
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

67% (01:42) correct 33% (01:20) wrong based on 6 sessions
1. Two giant identical poles have been planted in the ground. One of the
poles was planted deeper than the other pole. The shadow of pole A is 10
meters long and the shadow of pole B is 8 meters long. How tall is pole
B?
(1) Pole A is hoisted 14 meters in the air.
(2) Pole B is located 2 meters from pole A
[Reveal] Spoiler: OA

_________________

just one more month for exam...


Last edited by mohan514 on 14 Sep 2011, 19:31, edited 1 time in total.
VP
VP
avatar
Status: There is always something new !!
Affiliations: PMI,QAI Global,eXampleCG
Joined: 08 May 2009
Posts: 1365
Followers: 11

Kudos [?]: 135 [0], given: 10

GMAT Tests User
Re: arthematic!!! [#permalink] New post 08 Sep 2011, 18:43
Good one.

a using similar triangle principle,

pole B is behind pole A as both poles are identical meaning same heights.

thus 14/Hoisted height of pole B = 10/ (10 +2)

= 16.8 approx.

b. hoisted heights of poles not given.Hence redundant information.

A it is.
_________________

Visit -- http://www.sustainable-sphere.com/
Promote Green Business,Sustainable Living and Green Earth !!

Manager
Manager
avatar
Joined: 12 Jul 2011
Posts: 154
Concentration: Operations, Strategy
GMAT 1: 680 Q46 V37
WE: Engineering (Telecommunications)
Followers: 0

Kudos [?]: 13 [0], given: 42

GMAT Tests User
Re: arthematic!!! [#permalink] New post 08 Sep 2011, 23:53
Good question,
I learn from the question that one of the pole is dipped inside the ground and other one is just planted.
from this we can say that the length of 1st pole is 14 and the second pole's length above the ground will be 14 * 8 / 10 according to rule of similar triangle which comes out to be around 12.
Hoisted length of the second pole is 12. and hence answer is "A"
Manager
Manager
avatar
Status: exam is close ... dont know if i ll hit that number
Joined: 06 Jun 2011
Posts: 207
Location: India
Concentration: International Business, Marketing
GMAT Date: 10-09-2012
GPA: 3.2
Followers: 2

Kudos [?]: 7 [0], given: 1

Re: arthematic!!! [#permalink] New post 09 Sep 2011, 17:13
can anyone make the theory more clear,,
i am not familiar with the principleof similar triangles whatever you mentioned,,
please explain thanks in advance,,
_________________

just one more month for exam...

Manager
Manager
avatar
Joined: 04 Jun 2011
Posts: 193
Followers: 0

Kudos [?]: 32 [0], given: 21

GMAT Tests User
Re: arthematic!!! [#permalink] New post 10 Sep 2011, 05:59
guys can someone explain what this means "One of the poles was planted dipper than the other pole."

@mohan: in this question you really dont need to know mathematical stuff

All you need to know is the common sense that the larger the pole, the longer its shadow..
so for if 14 mt long pole casts a shadow of 10 mts,
x will cast a shadow of 8 mts

therefore x = 14 *8 /10
Manager
Manager
avatar
Status: exam is close ... dont know if i ll hit that number
Joined: 06 Jun 2011
Posts: 207
Location: India
Concentration: International Business, Marketing
GMAT Date: 10-09-2012
GPA: 3.2
Followers: 2

Kudos [?]: 7 [0], given: 1

Re: arthematic!!! [#permalink] New post 10 Sep 2011, 18:54
viks4gmat wrote:
guys can someone explain what this means "One of the poles was planted dipper than the other pole."

@mohan: in this question you really dont need to know mathematical stuff

All you need to know is the common sense that the larger the pole, the longer its shadow..
so for if 14 mt long pole casts a shadow of 10 mts,
x will cast a shadow of 8 mts

therefore x = 14 *8 /10

i actually di it that way but just wanted to know if there is some maths which i was missing
and whatever you have asked for,,
both the poles are of similar height but one pole is planted deeper means its height above the ground is decreased as it is burried deep in the ground when compared to the other pole which has the same height
_________________

just one more month for exam...

Manager
Manager
avatar
Joined: 07 Jun 2011
Posts: 77
Followers: 0

Kudos [?]: 9 [0], given: 31

Re: arthematic!!! [#permalink] New post 10 Sep 2011, 19:10
but guys, the question is asking us to find the length of the pole not the length above the ground
Manager
Manager
avatar
Joined: 04 Jun 2011
Posts: 193
Followers: 0

Kudos [?]: 32 [0], given: 21

GMAT Tests User
Re: arthematic!!! [#permalink] New post 10 Sep 2011, 20:56
thanks... the question says dipper and i went on to think one pole has a dipper-light of some sort that was casting a shadow etc... so do u mind correcting this in the problem... it helps people like me not get confused :-D

and if you have another core heights and distances question.. maybe then we can help you with your similar trianges approach
Senior Manager
Senior Manager
User avatar
Joined: 08 Nov 2010
Posts: 422
WE 1: Business Development
Followers: 7

Kudos [?]: 33 [0], given: 161

GMAT ToolKit User GMAT Tests User
Re: arthematic!!! [#permalink] New post 14 Sep 2011, 07:29
E for me - no matter how long is the shadow - we get no information about how much is in the ground. Are you sure OA is A???
_________________

Get the best GMAT Prep Resources with GMAT Club Premium Membership

Director
Director
User avatar
Status: My Thread Master Bschool Threads-->Krannert(Purdue),WP Carey(Arizona),Foster(Uwashngton)
Joined: 27 Jun 2011
Posts: 894
Followers: 57

Kudos [?]: 150 [0], given: 57

GMAT ToolKit User Reviews Badge
Re: arthematic!!! [#permalink] New post 14 Sep 2011, 12:20
dont think it can be A...because pole b is 2 m short...

IMOE
_________________

General GMAT useful links-->

Indian Bschools Accepting Gmat | My Gmat Daily Diary | All Gmat Practice CAT's | MBA Ranking 2013 | How to Convert Indian GPA/ Percentage to US 4 pt. GPA scale | GMAT MATH BOOK in downloadable PDF format| POWERSCORE CRITICAL REASONING BIBLE - FULL CHAPTER NOTES | Result correlation between GMAT and GMAT Club's Tests | Best GMAT Stories - Period!

More useful links-->

GMAT Prep Software Analysis and What If Scenarios| GMAT and MBA 101|Everything You Need to Prepare for the GMAT|New to the GMAT Club? <START HERE>|GMAT ToolKit: iPhone/iPod/iPad/Android application|

Verbal Treasure Hunt-->

"Ultimate" Study Plan for Verbal on the GMAT|Books to Read (Improve Verbal Score and Enjoy a Good Read)|Best Verbal GMAT Books 2012|Carcass Best EXTERNAL resources to tackle the GMAT Verbal Section|Ultimate GMAT Grammar Book from GC club [Free Download]|Ultimate Sentence Correction Encyclopedia|Souvik's The Most Comprehensive Collection Of Everything Official-SC|ALL SC Rules+Official Qs by Experts & Legendary Club Members|Meaning/Clarity SC Question Bank by Carcass_Souvik|Critical Reasoning Shortcuts and Tips|Critical Reasoning Megathread!|The Most Comprehensive Collection Of Everything Official- CR|GMAT Club's Reading Comprehension Strategy Guide|The Most Comprehensive Collection Of Everything Official- RC|Ultimate Reading Comprehension Encyclopedia|ALL RC Strategy+Official Q by Experts&Legendary Club Members

----
---
--
-


1 KUDOS = 1 THANK


Kick Ass Gmat

Manager
Manager
avatar
Joined: 25 Dec 2010
Posts: 86
Followers: 0

Kudos [?]: 16 [0], given: 2

Re: arthematic!!! [#permalink] New post 14 Sep 2011, 13:25
Should be E .
Moreover , the question does not clearly say that "on which side of Pole A is Pole B". No doubt that the shadows will be in the same direction , however won't the dimensions of the figure change if B lies to left of A as opposed to right ?
Manager
Manager
avatar
Status: exam is close ... dont know if i ll hit that number
Joined: 06 Jun 2011
Posts: 207
Location: India
Concentration: International Business, Marketing
GMAT Date: 10-09-2012
GPA: 3.2
Followers: 2

Kudos [?]: 7 [0], given: 1

Re: arthematic!!! [#permalink] New post 14 Sep 2011, 19:27
144144 wrote:
E for me - no matter how long is the shadow - we get no information about how much is in the ground. Are you sure OA is A???

picked up this question from some unknown sourse ..there are mistakes in the material

not sure about the answer though given in the material
_________________

just one more month for exam...

Re: arthematic!!!   [#permalink] 14 Sep 2011, 19:27
    Similar topics Author Replies Last post
Similar
Topics:
Plant scientists have been able to genetically engineer rohansherry 4 14 Aug 2009, 13:38
4 Plant scientists have been able to genetically engineer perfectstranger 4 24 Jul 2009, 23:44
Plant scientists have been able to genetically engineer priyankur_saha@ml.com 4 19 May 2009, 07:46
Plant scientists have been able to genetically engineer singh_amit19 1 29 Sep 2007, 22:24
Plant scientists have been able to genetically engineer pb_india 28 18 May 2005, 09:01
Display posts from previous: Sort by

Two giant identical poles have been planted in the ground.

  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®.