GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 16 Feb 2019, 09:44

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 in February
PrevNext
SuMoTuWeThFrSa
272829303112
3456789
10111213141516
17181920212223
242526272812
Open Detailed Calendar
  • Free GMAT Algebra Webinar

     February 17, 2019

     February 17, 2019

     07:00 AM PST

     09:00 AM PST

    Attend this Free Algebra Webinar and learn how to master Inequalities and Absolute Value problems on GMAT.
  • Free GMAT Strategy Webinar

     February 16, 2019

     February 16, 2019

     07:00 AM PST

     09:00 AM PST

    Aiming to score 760+? Attend this FREE session to learn how to Define your GMAT Strategy, Create your Study Plan and Master the Core Skills to excel on the GMAT.

A rectangular tabletop consists of a piece of laminated wood

  post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
VP
VP
avatar
Joined: 30 Sep 2004
Posts: 1415
Location: Germany
A rectangular tabletop consists of a piece of laminated wood  [#permalink]

Show Tags

New post 13 Feb 2005, 12:31
1
9
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

70% (01:44) correct 30% (02:02) wrong based on 253 sessions

HideShow timer Statistics

A rectangular tabletop consists of a piece of laminated wood bordered by a thin metal strip along its four edges. The surface area of the tabletop is x square feet, and the total length of the strip before it was attached was x feet. If the tabletop is 3 feet wide, what is its approximate length, in feet?

(A) 12
(B) 10
(C) 9
(D) 8
(E) 6

OPEN DISCUSSION OF THIS TOPIC IS HERE: a-rectangular-tabletop-consists-of-a-piece-of-laminated-wood-102356.html
Senior Manager
Senior Manager
avatar
Joined: 02 Feb 2004
Posts: 336
Re: PS - Tabletop  [#permalink]

Show Tags

New post 13 Feb 2005, 16:50
christoph wrote:
A rectangular tabletop consists of a piece of laminated wood bordered by a thin metal strip along its four edges. The surface area of the tabletop is x square feet, and the total length of the strip before it was attached was x feet. If the tabletop is 3 feet wide, what is its approximate length, in feet?
(A) 12
(B) 10
(C) 9
(D) 8
(E) 6


length of the strip before it was attached was x feet.
width=3
length=x-(2*3)=x-6 feet
so area= 3(x-6)=x sq feet
3x-18=x
x=9

What's wrong with this?
VP
VP
User avatar
Joined: 13 Jun 2004
Posts: 1066
Location: London, UK
Schools: Tuck'08
Re: PS - Tabletop  [#permalink]

Show Tags

New post 13 Feb 2005, 22:52
mirhaque wrote:
christoph wrote:
A rectangular tabletop consists of a piece of laminated wood bordered by a thin metal strip along its four edges. The surface area of the tabletop is x square feet, and the total length of the strip before it was attached was x feet. If the tabletop is 3 feet wide, what is its approximate length, in feet?
(A) 12
(B) 10
(C) 9
(D) 8
(E) 6


length of the strip before it was attached was x feet.
width=3
length=x-(2*3)=x-6 feet so area= 3(x-6)=x sq feet
3x-18=x
x=9

What's wrong with this?


the calculation is incorrect.
the length is (x-6)/2 and not x-6 which actually is the sum of both lengths

so area= (x-6)/2*3 =x
(3x-18)/2=x
3x-18 = 2x
x = 18

if width = 3 and surface = 18, so length is 6
SVP
SVP
User avatar
Joined: 06 Sep 2013
Posts: 1696
Concentration: Finance
GMAT ToolKit User
Re: A rectangular tabletop consists of a piece of laminated wood  [#permalink]

Show Tags

New post 12 Jan 2014, 12:05
1
christoph wrote:
A rectangular tabletop consists of a piece of laminated wood bordered by a thin metal strip along its four edges. The surface area of the tabletop is x square feet, and the total length of the strip before it was attached was x feet. If the tabletop is 3 feet wide, what is its approximate length, in feet?
(A) 12
(B) 10
(C) 9
(D) 8
(E) 6


LW = X
LW = 2(L+W)

W = 3

So replacing

L = 6

Just my 2cents

Hope it helps

Cheers!
J :)
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 52902
Re: A rectangular tabletop consists of a piece of laminated wood  [#permalink]

Show Tags

New post 12 Jan 2014, 17:26
2
A rectangular tabletop consists of a piece of laminated wood bordered by a thin metal strip along its four edges. The surface area of the tabletop is x square feet, and the total length of the strip before it was attached was x feet. If the tabletop is 3 feet wide, what is its approximate length, in feet?

(A) 12
(B) 10
(C) 9
(D) 8
(E) 6

Given: \(area=length*width=x\), as \(width=3\) --> \(3l=x\).

"Wood bordered by a thin metal strip along its four edges" and "the total length of the strip before it was attached was x" means that perimeter of a rectangular tabletop is also equal to \(x\): \(2(l+w)=2l+6=x\);

So we have: \(3l=2l+6\) --> \(l=6\).

Answer: E.

OPEN DISCUSSION OF THIS TOPIC IS HERE: a-rectangular-tabletop-consists-of-a-piece-of-laminated-wood-102356.html
_________________

New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

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?
Extra-hard Quant Tests with Brilliant Analytics

Non-Human User
User avatar
Joined: 09 Sep 2013
Posts: 9835
Premium Member
Re: A rectangular tabletop consists of a piece of laminated wood  [#permalink]

Show Tags

New post 14 Oct 2018, 04:31
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________

GMAT Books | GMAT Club Tests | Best Prices on GMAT Courses | GMAT Mobile App | Math Resources | Verbal Resources

GMAT Club Bot
Re: A rectangular tabletop consists of a piece of laminated wood   [#permalink] 14 Oct 2018, 04:31
Display posts from previous: Sort by

A rectangular tabletop consists of a piece of laminated wood

  post reply Question banks Downloads My Bookmarks Reviews Important topics  


Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| 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®.