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

Redeem

Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

★★★★★5.0559 reviews
GMATBootcamp Starts Sep 28
Chris Peckover, Target Test Prep GMAT expert
LIVE ONLINE BOOTCAMP

Live Online Bootcamp Class with Top GMAT Expert Chris Peckover

15 live classes from Sep 28, 2026

Schedule
Mon to Fri · 7:00 to 10:00 PM ET
Included
Live classes + 6 months of TTP OnDemand
  • Boost your GMAT score in less than one month in a live online class
  • 6 months access to TTP OnDemand video courses included
View bootcamp & enroll
Limited cohort · enrollment openTarget Test Prep
EALiveTeach 5 seats left
Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

Schedule
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll
Limited cohort · enrollment openTarget Test Prep
GMATOnDemand Start anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions
Start free 5-day trial
Read 559 reviewsTarget Test Prep

Compare the format, schedule, and included access before enrolling. Prices and seat counts shown reflect the supplied offer details.

DS5

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Data Sufficiency |
Legendary Member
Posts: 1337
Joined: Sat Dec 27, 2008 6:29 pmFollowed by: 10 members
Thanked: 127 times

by Night reader » Mon Jan 10, 2011 4:20 pm
GHong14 wrote:Image
Given points r,s,t on the number line, is r+s has midpoint 0

st(1) s is to the right of 0, but we don't know where is r. Not Sufficient
st(2) t-r=t-s OR r=-s; restate question -s + s has midpoint 0, we don't know where is s. Not Sufficient

Combining st(1&2) s is to the right of 0 and -s + s has midpoint 0 => symmetrical assumption. Sufficient

Answer C - Yes 0 is midpoint of r and s
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Legendary Member
Posts: 752
Joined: Sun Sep 12, 2010 2:47 amFollowed by: 10 members
Thanked: 20 times
GMAT Score:700

by prachich1987 » Mon Jan 17, 2011 1:30 pm
GHong14 wrote:Image
Is this question from GMATprep?
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Senior | Next Rank: 100 Posts
Posts: 79
Joined: Mon Sep 15, 2008 5:54 pm
Thanked: 3 times

by DarkKnight » Tue Jan 18, 2011 5:02 am
Guys,

I can't understand why Statement A is necessary? Is it possible to have t-r=t-(-s) without having r and s being on the opposite side of zero? Experts please help.

Thanks.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
GMAT Instructor
Posts: 905
Joined: Sun Sep 12, 2010 1:38 amFollowed by: 123 members
Thanked: 378 times
GMAT Score:760

by Geva@EconomistGMAT » Tue Jan 18, 2011 5:38 am
DarkKnight wrote:Guys,

I can't understand why Statement A is necessary? Is it possible to have t-r=t-(-s) without having r and s being on the opposite side of zero? Experts please help.

Thanks.
Try r=-4, s=-2, t=-1, so that -s is equal to 2, and t=-1 is the midpoint between 2 and -4. This condition satisfies stat. (2), but s and r are both to the left of zero.
Geva
Senior Instructor
Master GMAT
1-888-780-GMAT
https://www.mastergmat.com
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Senior | Next Rank: 100 Posts
Posts: 79
Joined: Mon Sep 15, 2008 5:54 pm
Thanked: 3 times

by DarkKnight » Tue Jan 18, 2011 8:25 am
Thanks Geva. Guess I didn't try hard enough to find the number combination on the left side of zero. Much appreciated.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1