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

 It is currently 22 Feb 2019, 02:26

### 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 February
PrevNext
SuMoTuWeThFrSa
272829303112
3456789
10111213141516
17181920212223
242526272812
Open Detailed Calendar
• ### Free GMAT RC Webinar

February 23, 2019

February 23, 2019

07:00 AM PST

09:00 AM PST

Learn reading strategies that can help even non-voracious reader to master GMAT RC. Saturday, February 23rd at 7 AM PT
• ### FREE Quant Workshop by e-GMAT!

February 24, 2019

February 24, 2019

07:00 AM PST

09:00 AM PST

Get personalized insights on how to achieve your Target Quant Score.

# If the area of the shaded region is 180 – 36π , what is the length of

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 53066
If the area of the shaded region is 180 – 36π , what is the length of  [#permalink]

### Show Tags

05 Sep 2018, 23:58
00:00

Difficulty:

15% (low)

Question Stats:

86% (01:17) correct 14% (01:07) wrong based on 24 sessions

### HideShow timer Statistics

If the area of the shaded region is 180 – 36π , what is the length of the rectangle?

A. 30
B. 24
C. 18
D. 15
E. 12

Attachment:

image026.gif [ 810 Bytes | Viewed 454 times ]

_________________
Intern
Joined: 09 Apr 2016
Posts: 3
Re: If the area of the shaded region is 180 – 36π , what is the length of  [#permalink]

### Show Tags

06 Sep 2018, 00:04
C

As 6 is radius so rectangular area 180.
180=18×10
Length 18

Posted from my mobile device
SC Moderator
Joined: 30 Jan 2015
Posts: 795
Location: India
Concentration: Operations, Marketing
GPA: 3.5
Re: If the area of the shaded region is 180 – 36π , what is the length of  [#permalink]

### Show Tags

06 Sep 2018, 02:37
1
Bunuel wrote:

If the area of the shaded region is 180 – 36π , what is the length of the rectangle?
Attachment:
image026.gif

+1 for D.

Shaded Area = 180 – 36π
Radius of the circle = 6
Meaning, Area of Circle = 36π and Total area of Rectangle = 180

Diameter of Circle = Width of Rectangle = 2 * 6 = 12
Total area of Rectangle = L * B = 180
L * 12 = 180
L = 15

Hence, D.
_________________

The few, the fearless !

Thanks

Intern
Joined: 09 Apr 2016
Posts: 3
Re: If the area of the shaded region is 180 – 36π , what is the length of  [#permalink]

### Show Tags

06 Sep 2018, 03:24
Shear ignorance ?

Posted from my mobile device
Board of Directors
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4391
Location: India
GPA: 3.5
Re: If the area of the shaded region is 180 – 36π , what is the length of  [#permalink]

### Show Tags

06 Sep 2018, 06:19
1
Bunuel wrote:

If the area of the shaded region is 180 – 36π , what is the length of the rectangle?

A. 30
B. 24
C. 18
D. 15
E. 12

Attachment:
image026.gif

Area of the white Circle is $$36π$$

Area of the shaded region is $$180 – 36π$$

Total Area of the rectangle is $$( 180 – 36π ) + 36π = l*12$$ { As breadth is twice the radius of the circle }

Or, $$180 = 12l$$

So, $$l = 15$$, Answer must be (D)
_________________

Thanks and Regards

Abhishek....

PLEASE FOLLOW THE RULES FOR POSTING IN QA AND VA FORUM AND USE SEARCH FUNCTION BEFORE POSTING NEW QUESTIONS

How to use Search Function in GMAT Club | Rules for Posting in QA forum | Writing Mathematical Formulas |Rules for Posting in VA forum | Request Expert's Reply ( VA Forum Only )

Re: If the area of the shaded region is 180 – 36π , what is the length of   [#permalink] 06 Sep 2018, 06:19
Display posts from previous: Sort by