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

It is currently 22 Oct 2014, 08:07

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.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

circle

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Senior Manager
Senior Manager
avatar
Joined: 26 May 2009
Posts: 317
Followers: 2

Kudos [?]: 36 [0], given: 13

circle [#permalink] New post 06 Jul 2009, 01:24
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

100% (01:16) correct 0% (00:00) wrong based on 0 sessions
10. If A is the center of the circle shown above and AB=BC=CD, what is the value of x?

(A) 15
(B) 30
(C) 45
(D) 60
(E) 75
Figure attached...I am not sure of the answer. So wanted to check?
Attachments

circle.gif
circle.gif [ 3.99 KiB | Viewed 968 times ]

Senior Manager
Senior Manager
avatar
Joined: 26 May 2009
Posts: 317
Followers: 2

Kudos [?]: 36 [0], given: 13

Re: circle [#permalink] New post 06 Jul 2009, 01:25
Please explain your method as well.
Intern
Intern
avatar
Joined: 03 Jul 2009
Posts: 7
Followers: 0

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

Re: circle [#permalink] New post 06 Jul 2009, 02:09
Ans is 30.
Right?
Plz confirm.
Director
Director
User avatar
Joined: 03 Jun 2009
Posts: 805
Location: New Delhi
WE 1: 5.5 yrs in IT
Followers: 64

Kudos [?]: 414 [0], given: 56

Re: circle [#permalink] New post 06 Jul 2009, 02:19
Answer B.

Let BD intersects AC at X.
Triangles, BCX and ABX are congruent,
as, AB=BC.
angle AXB = angle BXC = 90 degree (as BC = CD)
and BX is common side for both triangles.

this implies, angle ABX = CBX ..... (i)

Triangle ABC is equilateral triangle (as AB=BC=AC)
This implies angle ABC = 60 degree .... (ii)

From (i) and (ii), we can say that angle ABX = CBX = 30
_________________

ISB 2011-12 thread | Ask ISB Alumni @ ThinkISB
All information related to Indian candidates and B-schools | Indian B-schools accepting GMAT scores
Self evaluation for Why MBA?

Re: circle   [#permalink] 06 Jul 2009, 02:19
    Similar topics Author Replies Last post
Similar
Topics:
circle noboru 3 08 Aug 2009, 06:11
Experts publish their posts in the topic circle patrannn 1 20 May 2008, 01:01
circle Ravshonbek 5 30 Aug 2007, 13:46
Circle r0m3416 4 17 Aug 2007, 04:54
Circles ugo_castelo 10 28 Nov 2006, 08:23
Display posts from previous: Sort by

circle

  Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Privacy Policy| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group and phpBB SEO

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®.