1. C
We need info on both x & y , using both we get x + z + y + z is even => x + y + 2z is even
2. D
I => 8w+4x+2y+z = 11 now analyze
w has to be 1 else yo wont get to 11
if w =1 x has to be 0 else you will get to 12
and y and z has to be 1 to get to 11,
so you get values for all variables. Hence Suff.
SImilarly, eqn in II is also suff. HENCE D
3. C
We need info on both r,s & u,v so both eqn are needed
Try to put values you will get complementary values
if r=0.8 & s=0.2
u=0.2 & s=0.8
So they are equidistant.
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
XYZ, Coordinate system
Source: Beat The GMAT — Data Sufficiency |
-
vikram4689
- Legendary Member
- Posts: 1325
- Thanked: 105 times
