Last visit was: 31 May 2026, 21:26 It is currently 31 May 2026, 21:26
Home
Messages
MBA Fair
Tests
Schools
Events
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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel
Back to Forum
Create Topic
805+ (Hard)|   Geometry|      
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 31 May 2026
Posts: 111,002
Own Kudos:
818,137
 [9]
Given Kudos: 106,549
Products:
GMAT Club Tests Forum Quiz
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 111,002
Kudos: 818,137
 [9]
What is the measure of angle x in the diagram above? 06 Oct 2020, 07:30
1
Kudos
Add Kudos
8
Bookmarks
Bookmark this Post
00:00
Start Timer
Pause Timer
Resume Timer
Show Answer
Hide
Show
History
C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

Difficulty:

95% (hard)

Question Stats:

35% (03:15) correct 65% (03:37) wrong based on 57 sessions

History

Date
Time
Result
Not Attempted Yet

What is the measure of angle x in the diagram above?


A. 10°
B. 15°
C. 20°
D. 25°
E. 30°

Are You Up For the Challenge: 700 Level Questions


Show Spoiler
Attachment:
Untitled.png
Untitled.png [ 28.81 KiB | Viewed 4221 times ]
ShowHide Answer
Official Answer
C
User avatar
jackfr2
User avatar
Joined: 13 Aug 2018
Last visit: 30 Jul 2025
Posts: 58
Own Kudos:
627
Given Kudos: 523
Posts: 58
Kudos: 627
What is the measure of angle x in the diagram above? 16 Oct 2020, 05:41
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel

Anyone want to try this tough question?

Show more


not enough information is given I think 🤔

Posted from my mobile device
avatar
123456789007
avatar
Joined: 07 Sep 2019
Last visit: 25 Oct 2020
Posts: 30
Own Kudos:
33
 [1]
Given Kudos: 75
Location: India
Schools: Kellogg '23
Products:
My Reviews
Schools: Kellogg '23
Posts: 30
Kudos: 33
 [1]
What is the measure of angle x in the diagram above? 16 Oct 2020, 08:09
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
i found the other angles from vertically opposite angles property







give kudos if you like the answer
Attachments

IMG_20201016_205703.jpg
IMG_20201016_205703.jpg [ 1.41 MiB | Viewed 3466 times ]

IMG_20201016_205703.jpg
IMG_20201016_205703.jpg [ 1.41 MiB | Viewed 3511 times ]

User avatar
Pankaj0901
User avatar
Joined: 18 Dec 2018
Last visit: 17 Dec 2022
Posts: 402
Own Kudos:
53
 [1]
Given Kudos: 737
Location: India
WE:Account Management (Hospitality and Tourism)
Posts: 402
Kudos: 53
 [1]
What is the measure of angle x in the diagram above? 21 Oct 2020, 10:22
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
I think answer should be E (30 deg). Request experts to please share solution.

My solution: Assume B as the center of a circle. And A, E and D lie on the circumference of this circle.
Now, angle subtended by chord DE at the center is 20 (angle EBD), and on the angle subtended at point A is 10 (angle EAD).
Simlarly, for chord AD: angle ABD = twice the angle AED => 60 = 2x
=> x = 30 (Answer)

Logic used: Angle subtended by the chord at the center is twice the angle subtended by it at any other point on the remaining part of the circle.
User avatar
Pankaj0901
User avatar
Joined: 18 Dec 2018
Last visit: 17 Dec 2022
Posts: 402
Own Kudos:
53
Given Kudos: 737
Location: India
WE:Account Management (Hospitality and Tourism)
Posts: 402
Kudos: 53
What is the measure of angle x in the diagram above? 16 Nov 2020, 08:53
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel or Experts- Could you please clarify this. Thanks in advance.
User avatar
bumpbot
User avatar
Non-Human User
Joined: 09 Sep 2013
Last visit: 04 Jan 2021
Posts: 39,172
Own Kudos:
1,126
Posts: 39,172
Kudos: 1,126
What is the measure of angle x in the diagram above? 11 Jan 2022, 08:39
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Automated notice from GMAT Club BumpBot:

A member just gave Kudos to this thread, showing it’s still useful. I’ve bumped it to the top so more people can benefit. Feel free to add your own questions or solutions.

This post was generated automatically.
Moderator:
Bunuel
Math Expert
111002 posts