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

It is currently 18 Apr 2014, 16:05

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

Box W and Box V each contain several blue sticks and red

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Manager
Manager
Joined: 01 Nov 2007
Posts: 146
Followers: 1

Kudos [?]: 186 [0], given: 0

Box W and Box V each contain several blue sticks and red [#permalink] New post 29 Jan 2008, 14:34
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

33% (02:57) correct 66% (01:09) wrong based on 6 sessions
Box W and Box V each contain several blue sticks and red sticks, and all of the red sticks have the same length. The length of each red stick is 19 inches less that the average length of the sticks in Box W and 6 inches greater than the average length of the sticks in Box V. What is the average (arithmetic mean) length, in inches, of the sticks in Box W minus the average length, in inches, of the sticks in Box V?
(A) 3
(B) 6
(C) 12
(D) 18
(E) 24
Director
Director
Joined: 01 Jan 2008
Posts: 629
Followers: 3

Kudos [?]: 124 [0], given: 1

GMAT Tests User
Re: PS- Blue and red sticks [#permalink] New post 29 Jan 2008, 14:49
JCLEONES wrote:
Box W and Box V each contain several blue sticks and red sticks,
and all of the red sticks have the same length. The length of each red
stick is 19 inches less that the average length of the sticks in Box W
and 6 inches greater than the average length of the sticks in Box V.
What is the average (arithmetic mean) length, in inches, of the sticks
in Box W minus the average length, in inches, of the sticks in Box V?
(A) 3
(B) 6
(C) 12
(D) 18
(E) 24


length(red) = average(W) - 19
length(red) = average(V) + 6

average(W) - average(V) = 6+19=25 -> closest to E
SVP
SVP
Joined: 28 Dec 2005
Posts: 1597
Followers: 2

Kudos [?]: 67 [0], given: 2

GMAT Tests User
Re: PS- Blue and red sticks [#permalink] New post 29 Jan 2008, 19:26
concur with E ... closest to 25.

W has x red and y blue. V has a red and b blue

length(x)=length(a) = length(x)*x + length(y)*y / x+y + 19 = length(a)*a+length(b)*b/a+b + 6

shifting terms, we get the first term minus second term is 6+19=25
Manager
Manager
Joined: 17 Aug 2009
Posts: 238
Followers: 4

Kudos [?]: 75 [0], given: 25

GMAT Tests User
Re: PS- Blue and red sticks [#permalink] New post 10 Dec 2009, 11:30
Why do test Makers unnecessarily complicate matters????

Simply put, let the length of each red stick be R

Now R = Average length of sticks in Box W – 18------------- (1)
Also, R = Average length of sticks in Box V +6---------------(2)

Avg. length of sticks in Box W - 18 = Avg. length of sticks in Box V + 6
Avg. length of sticks in Box W - Avg. length of sticks in Box V = 24-----which is what we had to calculate

Hence E
Intern
Intern
Joined: 17 Oct 2011
Posts: 28
Location: Taiwan, Province of China
GMAT 1: 590 Q39 V34
GMAT 2: 680 Q47 V35
Followers: 0

Kudos [?]: 11 [0], given: 10

Re: Box W and Box V each contain several blue sticks and red [#permalink] New post 19 Feb 2012, 05:51
The right number is not 19 but 18.
"The length of each red stick is 18 inches less than the average length of the sticks in Box W and 6 inches greater than the average length of the sticks in Box V"
Math Expert
User avatar
Joined: 02 Sep 2009
Posts: 17317
Followers: 2874

Kudos [?]: 18379 [0], given: 2348

GMAT Tests User CAT Tests
Re: Box W and Box V each contain several blue sticks and red [#permalink] New post 19 Feb 2012, 11:00
Expert's post
wizard wrote:
The right number is not 19 but 18.
"The length of each red stick is 18 inches less than the average length of the sticks in Box W and 6 inches greater than the average length of the sticks in Box V"


For the question with 19 and 6 inches correct answer is 25:
{Average lengths of sticks in W} - 19 = Length of red;
{Average lengths of sticks in V} + 6 = Length of red;

{Average W}-19={Average V}+6 --> {Average W}-{Average V}=25.

For the question with 18 and 6 inches correct answer is 24:
{Average lengths of sticks in W} - 1 = Length of red;
{Average lengths of sticks in V} + 6 = Length of red;

{Average W}-18={Average V}+6 --> {Average W}-{Average V}=24.

Hope it's clear.
_________________

NEW TO MATH FORUM? PLEASE READ THIS: ALL YOU NEED FOR QUANT!!!

PLEASE READ AND FOLLOW: 11 Rules for Posting!!!

RESOURCES: [GMAT MATH BOOK]; 1. Triangles; 2. Polygons; 3. Coordinate Geometry; 4. Factorials; 5. Circles; 6. Number Theory; 7. Remainders; 8. Overlapping Sets; 9. PDF of Math Book; 10. Remainders; 11. GMAT Prep Software Analysis NEW!!!; 12. SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) NEW!!!; 12. Tricky questions from previous years. NEW!!!;

COLLECTION OF QUESTIONS:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS ; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


What are GMAT Club Tests?
25 extra-hard Quant Tests

Re: Box W and Box V each contain several blue sticks and red   [#permalink] 19 Feb 2012, 11:00
    Similar topics Author Replies Last post
Similar
Topics:
New posts Box W and Box V each contain several blue sticks and red marine 2 26 Aug 2004, 21:13
New posts Box W and Box V each contain several blue sticks and red Antmavel 3 18 Oct 2004, 18:10
New posts Box W and Box V each contain several blue sticks and red M8 4 24 Apr 2006, 11:51
New posts Box W and Box V each contain several blue sticks and red getzgetzu 3 05 May 2006, 23:46
New posts Box W and Box V each contain several blue sticks and red caiyun 1 05 Nov 2008, 19:49
Display posts from previous: Sort by

Box W and Box V each contain several blue sticks and red

  Question banks Downloads My Bookmarks Reviews Important topics  


cron

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®.