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
GMATLiveTeach Starts Oct 17
Chris Peckover, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Chris Peckover, 100th-Percentile GMAT Scorer

Oct 17 · Chris Peckover
Sat · 11:00 AM to 2:00 PM ET
Oct 20 · Chris Peckover
Tue, Thu · 8:00 to 10:00 PM ET
Oct 25 · Josh Braslow
Sun · 1:00 to 4:00 PM ET
Included
40 hours of live online classes + 6 months of TTP OnDemand
  • Attend the first class for free
  • Every class is recorded, so you never fall behind
View classes & enroll
Limited seats availableTarget Test Prep
EALiveTeachOnDemand 5 seats left Start anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

165+ EA score guarantee
$05-day trial no automatic billing
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 Start free 5-day trial
Limited cohort · enrollment openTrial includes full course accessTarget 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.

x-y

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Data Sufficiency |
Master | Next Rank: 500 Posts
Posts: 103
Joined: Mon May 18, 2009 9:47 am
Thanked: 19 times

by raleigh » Sun May 31, 2009 8:09 pm
For quick reference, label (x-y)/(x+y) as (*).
(1) Choose x=1, y=-2. Then (*) = 3/-1 < 1
Now Choose x =10, y = -2. Then (*) = 12/8 > 1.

(1) is insufficient.

(2). Choose x = 1, y = -2. Then (*) = 3/-1 < 1
Choose x = 10, y = -2. Then (*) = 12/8 > 1

(2) is insufficient.

(1)+(2) Note that the same values made (1) and (2) insufficient. So apply those values to this case and you will get the same result. (1)+(2) is insufficient.

The answer is E.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Legendary Member
Posts: 1169
Joined: Sun Jul 06, 2008 2:34 amFollowed by: 1 member
Thanked: 25 times

by aj5105 » Sun May 31, 2009 11:11 pm
How did you pick these values? Any quick method?

raleigh wrote:For quick reference, label (x-y)/(x+y) as (*).
(1) Choose x=1, y=-2. Then (*) = 3/-1 < 1
Now Choose x =10, y = -2. Then (*) = 12/8 > 1.

(1) is insufficient.

(2). Choose x = 1, y = -2. Then (*) = 3/-1 < 1
Choose x = 10, y = -2. Then (*) = 12/8 > 1

(2) is insufficient.

(1)+(2) Note that the same values made (1) and (2) insufficient. So apply those values to this case and you will get the same result. (1)+(2) is insufficient.

The answer is E.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Legendary Member
Posts: 1169
Joined: Sun Jul 06, 2008 2:34 amFollowed by: 1 member
Thanked: 25 times

by aj5105 » Sun May 31, 2009 11:12 pm
How did you pick these values? Any quick method?

raleigh wrote:For quick reference, label (x-y)/(x+y) as (*).
(1) Choose x=1, y=-2. Then (*) = 3/-1 < 1
Now Choose x =10, y = -2. Then (*) = 12/8 > 1.

(1) is insufficient.

(2). Choose x = 1, y = -2. Then (*) = 3/-1 < 1
Choose x = 10, y = -2. Then (*) = 12/8 > 1

(2) is insufficient.

(1)+(2) Note that the same values made (1) and (2) insufficient. So apply those values to this case and you will get the same result. (1)+(2) is insufficient.

The answer is E.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 103
Joined: Mon May 18, 2009 9:47 am
Thanked: 19 times

by raleigh » Mon Jun 01, 2009 8:37 am
I normally start by picking small numbers because they are easy to work with, ie 1 and 2.

x has to be positive and y has to be negative for x - y to have be greater than x + y (with y negative, the - will act as a +, and the + will act as a -).

So I pick something like x=1, y=-2 and get x-y=3, x+y=-1 < 1. Now I want to try to make the ratio greater than one. It was less than one because the denominator was negative. So how do we make it positive? Make x larger than y.

Try x=2, y=-1. Then x-y=3, and x+y=1 >1.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 171
Joined: Mon Jun 01, 2009 8:59 pm
Thanked: 8 times

Answer: E

by brick2009 » Mon Jun 01, 2009 9:45 pm
1.) 1 talks abt only X...Y is indeterminant..hence (1) insufficient..
2.) Same for 2...X value indeterminant...(2) insufficient...

Together...they yield multiple combinations of X and Y..hence...data is insufficient.
E
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1