Last visit was: 14 Jul 2025, 02:06 It is currently 14 Jul 2025, 02:06
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
User avatar
TOUGH GUY
Joined: 10 Oct 2005
Last visit: 14 Feb 2007
Posts: 83
Own Kudos:
578
 [11]
Location: Hollywood
Posts: 83
Kudos: 578
 [11]
3
Kudos
Add Kudos
8
Bookmarks
Bookmark this Post
User avatar
yezz
User avatar
Retired Moderator
Joined: 05 Jul 2006
Last visit: 26 Apr 2022
Posts: 837
Own Kudos:
Given Kudos: 49
Posts: 837
Kudos: 1,644
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
londonluddite
Joined: 30 Aug 2006
Last visit: 28 Jan 2008
Posts: 221
Own Kudos:
279
 [1]
Posts: 221
Kudos: 279
 [1]
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
User avatar
asaf
Joined: 06 Sep 2006
Last visit: 07 Apr 2008
Posts: 293
Own Kudos:
Posts: 293
Kudos: 191
Kudos
Add Kudos
Bookmarks
Bookmark this Post
x = 2y
x * y = 128
2y^2 = 128
y = 8
x = 16

fence = y + y + x = 32
D
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 13 Jul 2025
Posts: 102,569
Own Kudos:
741,192
 [3]
Given Kudos: 98,178
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 102,569
Kudos: 741,192
 [3]
1
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
A rectangular region has a fence along three sides and a wall along the fourth side. The fenced side opposite the wall is twice the length of each of the other two fenced sides. If the area of the rectangular region is 128 square feet, what is the total length of the fence, in feet?
A. 4
B. 8
C. 16
D. 32
E. 64

The fenced side opposite the wall = 2x.
Each of the other two fenced sides = x.

The area = 2x*x=128 --> x=8.

The total length of the fence = x + x + 2x = 4x = 32 feet.

Answer: D.

Hope it's clear.
avatar
PareshGmat
Joined: 27 Dec 2012
Last visit: 10 Jul 2016
Posts: 1,538
Own Kudos:
Given Kudos: 193
Status:The Best Or Nothing
Location: India
Concentration: General Management, Technology
WE:Information Technology (Computer Software)
Posts: 1,538
Kudos: 7,893
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Please refer the screenshot attached:

2x ^ 2 = 128
x = 8

4x = Perimeter of fence = 32 (Answer = D)
Attachments

wall.JPG
wall.JPG [ 5.57 KiB | Viewed 15251 times ]

avatar
Quynguyen
avatar
Current Student
Joined: 04 Dec 2020
Last visit: 19 Jun 2022
Posts: 25
Own Kudos:
Given Kudos: 75
Location: Viet Nam
Concentration: Operations, Technology
GPA: 3.3
WE:Sales (Manufacturing)
Posts: 25
Kudos: 3
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Rectangular with side a, b, longer side a, shorter side b.
The fenced side opposite the wall is twice the length of each of the other two fenced sides
=> Interpret it as a =2b.
a= 2b, axb = 128 ==> 2b^2 =128 ==> b =8.
=> Total length of the fence = a+2b = 2b+2b = 4b = 8x4 =32.
User avatar
saaiid
Joined: 29 Jan 2025
Last visit: 01 Jun 2025
Posts: 15
Own Kudos:
Given Kudos: 11
Posts: 15
Kudos: 1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
let, unfenced side = x
so, one fenced side = 2x
2x*x= 180
x = 8
4x = 32
Answer : D
Moderators:
Math Expert
102569 posts
PS Forum Moderator
691 posts