Hi Andre!
IMO [spoiler]D
[/spoiler]
angle(PRS) - angle(PQR) = ?
angle(QPR) + angle(PRQ) + angle(PQR)= 180
angle(PRS) = 180 - angle(PRQ)
angle(PRQ) = 180 - angle(PRS)
angle(QPR) + 180 - angle(PRS) + angle(RQP) = 180
angle(QPR) + angle(PQR) = angle(PRS)
angle(PRS) - angle(PQR) = angle(QPR)
(1) angle(QPR) = 30
it is SUFFICIENT
(2) angle(PRQ) + angle(PQR) = 150
angle(QPR) + angle(PRQ) + angle(PQR)= 180
angle(QPR) + 150= 180
angle(QPR) = 30
it is SUFFICIENT
so answer is D
hope it helps!
Best,
Maciek
BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course
Redeem
Featured Course
Target Test Prep GMAT OnDemand
Scott Woodbury-Stewart’s private virtual classroom — 400 hours of master-class video lessons for the GMAT Focus Edition.
- 715+ score guarantee — highest in the industry (99th percentile)
- 52 chapters · 1,500+ lessons · 4,000+ practice questions
- 400 hours of video · 1,500+ instructor-led HD smartboard lessons
- 300,000+ students accepted to Harvard, Stanford, Wharton, Booth & Sloan & more
- 24/7 live support + weekly Zoom office hours with GMAT instructors
- TTP AI Assist — 24/7 AI-powered virtual tutor for instant help
- 1,200+ flashcards + AI-powered study assistant & daily calendar
- OnDemand, LiveTeach & GMAT Bootcamp formats available
- Also: GRE, SAT Math & Executive Assessment courses
- MBA Admissions Consulting now available
- 🏆 2025 EdTech Breakthrough Award: Test Prep Solution Provider of the Year
- 200,000+ students served
- 5-day free trial — $0 to start, no auto-billing, cancel anytime
★★★★★
5.0
(559 reviews)
130-pt guarantee
$0 to start
then $127/mo
Geometry
Source: Beat The GMAT — Data Sufficiency |
"There is no greater wealth in a nation than that of being made up of learned citizens." Pope John Paul II
if you have any questions, send me a private message!
should you find this post useful, please click on "thanks" button
if you have any questions, send me a private message!
should you find this post useful, please click on "thanks" button
