Events & Promotions
|
|
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.
Sep 1808:00 PM PDT
-09:00 PM PDT
Video explanations + diagnosis of 10 weakest areas + 150+ short videos + study plan!
Sep 1801:30 AM EDT
-02:30 AM EDT
Learn how Kamakshi achieved a GMAT 675 with an impressive 96th %ile in Data Insights. Discover the unique methods and exam strategies that helped her excel in DI along with other sections for a balanced and high score.
Sep 1902:30 AM EDT
-03:30 AM EDT
Tejas studied hard but kept repeating the same mistakes. After 3 attempts at 645, a focused 4-week strategy helped him identify and fix what was holding him back—leading to a 695 with just 12–15 hours of study per week.
Sep 2003:30 AM EDT
-04:30 AM EDT
Looking for your GMAT motivation to break through the score plateau? Pragati improved her score by massive 160 points with strategic guidance and hard-work! Find out how personalized mentorship and a strong mindset can turn GMAT struggles into success.
Sep 2601:00 PM EDT
-04:00 PM EDT
Top scores are possible when you enroll in a powerful GMAT course, taught live online + 6 months access to TTP OnDemand video courses included. Class starts Saturdays Sept. 26, 2026 - Dec. 19, 2026, 1:00pm-4:00pm ES
Sep 2911:00 AM EDT
-01:00 PM EDT
" Description: Top scores are possible when you enroll in a powerful GMAT course, taught live online + 6 months access to TTP OnDemand video courses included! Class starts Tues/Thur Sept. 29, 2026 - Dec. 3, 2026, 11:00am-1:00pm EST
Updated on: 07 Aug 2018, 04:44
Originally posted by EgmatQuantExpert on 27 Apr 2017, 00:03.
Last edited by EgmatQuantExpert on 07 Aug 2018, 04:44, edited 1 time in total.
Last edited by EgmatQuantExpert on 07 Aug 2018, 04:44, edited 1 time in total.
Kudos
Bookmarks
B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
85%
(hard)
Question Stats:
58% (03:26) correct
42%
(03:06)
wrong
based on 90
sessions
History
Date
Time
Result
Not Attempted Yet
Q. PQR is an isosceles triangle such that PQ = PR. S is a point on QR such that ∠ QPS \(=50^o\). T is a point on PR such that PS = PT. Find ∠ TSR.
Thanks,
Saquib
Quant Expert
e-GMAT
Register for our Free Session on Number Properties (held every 3rd week) to solve exciting 700+ Level Questions in a classroom environment under the real-time guidance of our Experts
- A. \(20^o\)
B. \(25^o\)
C. \(30^o\)
D. \(35^o\)
E. \(50^o\)
Thanks,
Saquib
Quant Expert
e-GMAT
Register for our Free Session on Number Properties (held every 3rd week) to solve exciting 700+ Level Questions in a classroom environment under the real-time guidance of our Experts
27 Apr 2017, 00:04
Kudos
Bookmarks
Reserving this space to post the official solution. 
27 Apr 2017, 00:58
Kudos
Bookmarks
As PS=PT, Triangle PST is an isoceles triangle and hence Angle PST=PTS=Z
So,angle SPT = 180-2Z
As PQ=PR, Triangle PQR is an isoceles triangle and hence Angle PQR=PRQ=Y
So In Triangle PQR => 2Y+50+180-2Z=180
=> 2Y+50-2Z=0
=> Y+25=Z
Now Since Sum of Interior opposite angles = Exterior adjacent Angle
Angle PQR + Angle QPS = Angle PST + Angle TSR
Y+50=Z+X
Y+50=Y+25+X
X=25
Answer is B
So,angle SPT = 180-2Z
As PQ=PR, Triangle PQR is an isoceles triangle and hence Angle PQR=PRQ=Y
So In Triangle PQR => 2Y+50+180-2Z=180
=> 2Y+50-2Z=0
=> Y+25=Z
Now Since Sum of Interior opposite angles = Exterior adjacent Angle
Angle PQR + Angle QPS = Angle PST + Angle TSR
Y+50=Z+X
Y+50=Y+25+X
X=25
Answer is B
Attachments
solution.png [ 7.39 KiB | Viewed 25518 times ]
