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

Redeem
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 →

need help with method...

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Data Sufficiency |
Master | Next Rank: 500 Posts
Posts: 132
Joined: Sun Apr 27, 2008 10:31 am
Location: Portugal
Thanked: 7 times

Re: need help with method...

by atlantic » Thu Jun 26, 2008 11:18 pm
[quote="shipra"]If x is not = y, is (x-y)/(x+y) > 1?

1. x>0
2. y<0

can sum1 pls help me with the method to do such questions...please?[/quote]

(x-y)/(x+y)>1 <-> x-y>x+y <-> -2y<0 <-> y>0 so (2) is SUFF

Answer B
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Junior | Next Rank: 30 Posts
Posts: 11
Joined: Wed Jun 25, 2008 5:30 am

by floravaze » Fri Jun 27, 2008 4:28 am
i seriously doubt that the answer is B.I'd rather go with E.
Statement 1 is insufficient because it tells you nothing about y and statement 2 is also insufficient for the same reason that gives no infomation about x.Now,the two statements taken together are also insufficient coz the relative magnitudes are unknown.take values x=2,y=-1 and x-10,y=-10.The two give you 3 and o respectively.Therefore answer is 3.Hope this helps.
touch the sky
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Master | Next Rank: 500 Posts
Posts: 200
Joined: Sun Jun 17, 2007 10:46 am
Location: Canada
Thanked: 9 times

by beeparoo » Fri Jun 27, 2008 7:48 am
floravaze wrote:i seriously doubt that the answer is B.I'd rather go with E.
Statement 1 is insufficient because it tells you nothing about y and statement 2 is also insufficient for the same reason that gives no infomation about x.Now,the two statements taken together are also insufficient coz the relative magnitudes are unknown.take values x=2,y=-1 and x-10,y=-10.The two give you 3 and o respectively.Therefore answer is 3.Hope this helps.
I agree with floravaze that the ans should be E.

Both statements together are INSUFF "coz the relative magnitudes are unknown".

But floravaze, your example, in which
x = 10 (I assume is what you meant to type)
y = -10
When plugged into the eq'n is (10 + 10)/(10 - 10)
This does NOT equal ZERO. It is UNDEFINED.

A better second example (to prove insufficiency) would be:
x = 1
y = -3
Then (1 + 3)/(1 - 3) = 4/(-2) = -2, which is NOT >1.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Junior | Next Rank: 30 Posts
Posts: 11
Joined: Wed Jun 25, 2008 5:30 am

by floravaze » Sat Jun 28, 2008 2:35 am
Thanks Beeparo
U're right about my example.it is undefinable and not zero.I really do make these stupid mistakes at times.
touch the sky
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1