PS Problem from GMATPrep

[This topic has 2 member replies]
Forum Index GMAT Math Problem Solving
Free $100 Amazon.com Gift Card - Buy a GMAT course using a Beat The GMAT discount code between Mar 8-22 and get a $100 Amazon.com Gift Card. Learn more!
Post New Topic   Post Reply

Tsadori
Just gettin' started!

Default Avatar

Joined: 16 Nov 2006
Posts: 4

Thanks given: 0
Thanked 0 times in 0 posts
Topic: PS Problem from GMATPrep
PostSun Jan 21, 2007 3:15 pm
Elapsed Time:
00:00
 Lap   Why a timer is critical to improving your score
SOURCE: GMATPrep
Attachments
This post contains an attachment. You must be logged in to download/view this file. Please login or register as a user.
Back to top
View user's profile Send private message
g2000
Just gettin' started!

Default Avatar

Joined: 09 Jan 2007
Posts: 19

Thanks given: 0
Thanked 1 times in 1 posts
PostSun Jan 21, 2007 4:44 pm
40 = Circumference of square + perimeter of square

We are to find the sum of areas of both.
Area of circle = pi * r^2
Area of Square = m^2 where m is the one side length of square

4*m = 40 - (2 * pi * r)
m = ( 40 - (2 * pi * r) ) / 4
m = (10 - ((pi * r ) / 2 ) )

Total area enclosed by both shapes
= area of circle + area of square
= (pi * r ^ 2) + (10 - (( pi * r)/ 2)) ^ 2

Answer is the last choice
Back to top
View user's profile Send private message
Tsadori
Just gettin' started!

Default Avatar

Joined: 16 Nov 2006
Posts: 4

Thanks given: 0
Thanked 0 times in 0 posts
PostMon Jan 22, 2007 3:15 pm
OA: E

Thanks Smile
Back to top
View user's profile Send private message
Display posts from previous:   

Post New Topic   Post Reply All times are GMT - 7 Hours
Page 1 of 1
 
Forum Index GMAT Math Problem Solving
Most Active Members in Last 30 Days
1. harsh.champ 621 posts
2. shashank.ism 430 posts
3. ajith 342 posts
4. thephoenix 337 posts
5. money9111 332 posts
See More Top Beat The GMAT Members
Most Active Experts in Last 30 Days
1. lunarpower
Manhattan GMAT Teacher 		85 posts
2. Stuart Kovinsky
Kaplan GMAT Teacher 		71 posts
3. Lisa Anderson
Stacy Blackman Consulting 		50 posts
4. Testluv
Kaplan GMAT Teacher 		50 posts
5. Bryant@VeritasPrep
Veritas Prep 		30 posts
See More Top Beat The GMAT Experts