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

 It is currently 07 Jul 2015, 16:10

### 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

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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# Geometry Problem

Author Message
TAGS:
Intern
Joined: 25 Aug 2008
Posts: 30
Followers: 0

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

Geometry Problem [#permalink]  22 Oct 2008, 16:42

Thanks!
Attachments

Geometry-Ratio.jpg [ 63.38 KiB | Viewed 1045 times ]

Senior Manager
Joined: 21 Apr 2008
Posts: 269
Location: Motortown
Followers: 1

Kudos [?]: 104 [0], given: 0

Re: Geometry Problem [#permalink]  22 Oct 2008, 16:48
B - 24/25

4s = 2(l+w)
l/w = 2/3
so,
s = 5/6w

Question asks for (l*w)/(s^2) = (2/3)/(25/36) = 24/25
Senior Manager
Joined: 21 Apr 2008
Posts: 269
Location: Motortown
Followers: 1

Kudos [?]: 104 [0], given: 0

Re: Geometry Problem [#permalink]  22 Oct 2008, 16:49
Poots: I think you are posting your questions in the wrong section
Intern
Joined: 25 Aug 2008
Posts: 30
Followers: 0

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

Re: Geometry Problem [#permalink]  22 Oct 2008, 17:06
Oh, you're so right, LS. I am posting them wrong. See what GMAT does to me?!
Do you know how I can move them or is all hope lost?
Director
Joined: 23 May 2008
Posts: 839
Followers: 3

Kudos [?]: 40 [0], given: 0

Re: Geometry Problem [#permalink]  22 Oct 2008, 22:40
just make the sides of the rectangle 2 and 3, the area is 6
that means that the perimeter is 10 (2+3+2+3)
the perimeter of the square is 10 also so each side is 10/4
the area of the square is 10/4*10/4=100/16=25/4
so the ratio of area of R to S is 6 / 25/4 or 24/25
VP
Joined: 30 Jun 2008
Posts: 1047
Followers: 11

Kudos [?]: 358 [0], given: 1

Re: Geometry Problem [#permalink]  23 Oct 2008, 03:35
LiveStronger wrote:
B - 24/25

4s = 2(l+w)
l/w = 2/3
so,
s = 5/6w

Question asks for (l*w)/(s^2) = (2/3)/(25/36) = 24/25

l/w = 2/3 ---> shouldn't it be w/l = 2/3 ?? length > width ,
_________________

"You have to find it. No one else can find it for you." - Bjorn Borg

Manager
Joined: 12 Oct 2008
Posts: 105
Followers: 1

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

Re: Geometry Problem [#permalink]  23 Oct 2008, 07:47
Rectangular's sides are 2, 3, 2, 3, therefore perimeter is 10
If the square has the same perimeter - 10 - that means that the lengh of one side is 2,5
Area of rectangular is 2*3=6
Area of square 2,5*2,5=6,25
Although we do not have answer choice for that, and we need integers in ratio, therefore we multiply both areas by 4 and get 24:25
Senior Manager
Joined: 21 Apr 2008
Posts: 269
Location: Motortown
Followers: 1

Kudos [?]: 104 [0], given: 0

Re: Geometry Problem [#permalink]  23 Oct 2008, 09:26
amitdgr wrote:
LiveStronger wrote:
B - 24/25

4s = 2(l+w)
l/w = 2/3
so,
s = 5/6w

Question asks for (l*w)/(s^2) = (2/3)/(25/36) = 24/25

l/w = 2/3 ---> shouldn't it be w/l = 2/3 ?? length > width ,

either way will work amit. Make sure you calculate the right value for 's' though
Re: Geometry Problem   [#permalink] 23 Oct 2008, 09:26
Similar topics Replies Last post
Similar
Topics:
Geometry problem 7 22 Feb 2009, 01:43
Geometry Problem 16 20 Jul 2008, 08:50
Geometry problem 4 18 May 2008, 14:18
Geometry Problem 10 20 Nov 2007, 07:33
Geometry Problem 6 11 Sep 2007, 17:56
Display posts from previous: Sort by