|
|
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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
20 Mar 2022, 02:55
Kudos
Bookmarks
C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
65%
(hard)
Question Stats:
49% (01:47) correct
51%
(01:34)
wrong
based on 87
sessions
History
Date
Time
Result
Not Attempted Yet
The triangle ABC is isosceles. What is the measure of the angle ACB?
(1) angle ABC = 2 × angle ACB
(2) BC < AC
Are You Up For the Challenge: 700 Level Questions
(1) angle ABC = 2 × angle ACB
(2) BC < AC
Are You Up For the Challenge: 700 Level Questions
Pure algebraic questions like this one are no longer part of the GMAT Data Sufficiency syllabus.
For relevant Data Sufficiency questions, please check the Data Sufficiency forum:
Data Sufficiency Forum
Data Sufficiency Forum
yashikaaggarwal
Senior Moderator - Masters Forum
Joined: 19 Jan 2020
Last visit: 10 Aug 2026
Posts: 3,095
Own Kudos:
Given Kudos: 1,510
Location: India
Schools: Cranfield (A) Warwick MiM "23 (M)
GPA: 4
WE:Analyst (Internet and New Media)
20 Mar 2022, 09:10
Kudos
Bookmarks
1) the third angle could either be equal to ABC or ACB.
Can't determine the value of ACB without knowing the value of BAC.
(Not Sufficient)
2) BC < AC
Not sure whether AB is equal to AC or BC
Can't determine the value if ACB
(Not Sufficient)
Combining both,
If AB is equalised to AC, Angle B and Angle C has to be the same but they are not (refer to image)
Hence, AB = BC
Angle CAB = ACB = 2*ABC
The total value of all angles = 180
Let, CAB = X
Then,
X+X+2X = 180
4X = 180
X = 45
ACB = 45°
(Sufficient)
Answer is C
Posted from my mobile device
Can't determine the value of ACB without knowing the value of BAC.
(Not Sufficient)
2) BC < AC
Not sure whether AB is equal to AC or BC
Can't determine the value if ACB
(Not Sufficient)
Combining both,
If AB is equalised to AC, Angle B and Angle C has to be the same but they are not (refer to image)
Hence, AB = BC
Angle CAB = ACB = 2*ABC
The total value of all angles = 180
Let, CAB = X
Then,
X+X+2X = 180
4X = 180
X = 45
ACB = 45°
(Sufficient)
Answer is C
Posted from my mobile device
Attachments
IMG_20220320_213636.png [ 9.64 KiB | Viewed 3199 times ]
28 Aug 2023, 07:38
Kudos
Bookmarks
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.
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.
