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

It is currently 25 Sep 2018, 06:12

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

The figure above shows a circular flower bed, with its center at O, su

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 49492
The figure above shows a circular flower bed, with its center at O, su  [#permalink]

Show Tags

New post 28 Nov 2017, 21:04
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

100% (00:47) correct 0% (00:00) wrong based on 18 sessions

HideShow timer Statistics

Image
The figure above shows a circular flower bed, with its center at O, surrounded by a circular path that is 3 feet wide. What is the area of the path, in square feet?

(A) 25π
(B) 38π
(C) 55π
(D) 57π
(E) 64π

Attachment:
2017-11-28_1025.png
2017-11-28_1025.png [ 6.37 KiB | Viewed 534 times ]

_________________

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

BSchool Forum Moderator
User avatar
V
Joined: 26 Feb 2016
Posts: 3141
Location: India
GPA: 3.12
Premium Member CAT Tests
The figure above shows a circular flower bed, with its center at O, su  [#permalink]

Show Tags

New post 28 Nov 2017, 21:16
1
Image

The outer circle has the radius of 8+3(since the circular path around the flower bed is 3 feet) = 11
Hence, the area of the outer circle is \(π*(11)^2 = 121π\)
Since the radius of the inner circle is 8, area will be \(π*(8)^2 = 64π\)

The area of the path will be the difference of area of the outer circle and the area of the inner circle.
Hence area of the path will be \(121π - 64π = 57π\)(Option D)
_________________

You've got what it takes, but it will take everything you've got

Target Test Prep Representative
User avatar
G
Status: Founder & CEO
Affiliations: Target Test Prep
Joined: 14 Oct 2015
Posts: 3528
Location: United States (CA)
Re: The figure above shows a circular flower bed, with its center at O, su  [#permalink]

Show Tags

New post 01 Dec 2017, 07:56
Bunuel wrote:
Image
The figure above shows a circular flower bed, with its center at O, surrounded by a circular path that is 3 feet wide. What is the area of the path, in square feet?

(A) 25π
(B) 38π
(C) 55π
(D) 57π
(E) 64π

Attachment:
2017-11-28_1025.png



The area of the inner circle is 8^2π = 64π.

The area of the outer circle is 11^2π = 121π.

Thus, the area of the path is the difference of the two areas: 121π - 64π = 57π.

Answer: D
_________________

Scott Woodbury-Stewart
Founder and CEO

GMAT Quant Self-Study Course
500+ lessons 3000+ practice problems 800+ HD solutions

Intern
Intern
avatar
Joined: 26 Sep 2017
Posts: 6
Re: The figure above shows a circular flower bed, with its center at O, su  [#permalink]

Show Tags

New post 01 Dec 2017, 08:21
Area of the path = Area of larger circle (with radius 8+3=11) - Area of smaller circle (with radius 8)
=>Area of the path = π∗(11)^2 - π∗(8)^2
=>Area of the path = 121π - 64π = 57π
Answer: D
GMAT Club Bot
Re: The figure above shows a circular flower bed, with its center at O, su &nbs [#permalink] 01 Dec 2017, 08:21
Display posts from previous: Sort by

The figure above shows a circular flower bed, with its center at O, su

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  

Events & Promotions

PREV
NEXT


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®.