BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem
Logan Thompson, Target Test Prep LiveTeach instructor
Next LiveTeach cohort7 seats left

Aug 22 to Nov 14, 2026 with Logan Thompson

Sat, 10:00 AM to 1:00 PM Eastern (ET) · 40 live hours plus six months of OnDemand included

View class & enroll
TTP OnDemand GMAT Video Course
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
Start Free 5-Day Trial Read 559 Reviews →

Does w - v = 0?

Expert replies
Post new topic Post Reply
Previous Topic Next Topic

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 16207
Joined: Mon Dec 08, 2008 6:26 pmFollowed by: 1268 members
Location: Vancouver, BC
Thanked: 5254 times
GMAT Score:770
by Brent@GMATPrepNow » Tue Oct 18, 2022 5:43 am

Timer

00:00

Answers

A

B

C

D

E

Stats

Difficulty—

Does w - v = 0?

(1) w² - v² = 0
(2) wv < 0

Answer: B
Source: www.gmatprepnow.com
Brent Hanneson - Creator of GMATPrepNow.com
Image
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Data Sufficiency |

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 16207
Joined: Mon Dec 08, 2008 6:26 pmFollowed by: 1268 members
Location: Vancouver, BC
Thanked: 5254 times
GMAT Score:770

Re: Does w - v = 0?

by Brent@GMATPrepNow » Wed Oct 19, 2022 6:32 pm
Brent@GMATPrepNow wrote: ↑
Tue Oct 18, 2022 5:43 am
 Does w - v = 0?

(1) w² - v² = 0
(2) wv < 0

Answer: B
Source: www.gmatprepnow.com
Target question: Does w - v = 0?
This is a good candidate for rephrasing the target question.
If we add v to both sides of the target question, we get...
REPHRASED target question: Does w = v?

Aside: Here’s a video with tips on rephrasing the target question: https://www.gmatprepnow.com/module/gmat- ... cy?id=1100

Statement 1: w² - v² = 0
There are infinitely many values of w and v that satisfy statement 1. Here are two:
Case a: w = 3 and v = 3. In this case, the answer to the REPHRASED target question is YES, w equals v
Case b: w = 3 and v = -3. In this case, the answer to the REPHRASED target question is NO, w does not equal v
Since we can’t answer the target question with certainty, statement 1 is NOT SUFFICIENT

Statement 2: wv < 0
If wv is negative, then one value (w or v) is POSITIVE, and the other value is NEGATIVE.
Since w and v are different signs, w and v cannot be equal
Since we can answer the target question with certainty, statement 2 is SUFFICIENT

Answer: B

Cheers,
Brent
Brent Hanneson - Creator of GMATPrepNow.com
Image
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1