Live GMAT classes with Target Test Prep start Nov 21 and Nov 22. First class free.

See classes
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.

Newsweek Readers’ Choice Awards 2026 winner: Target Test Prep, #1 Test Prep

Target Test Prep was voted #1 Best Test Prep in the 2026 Newsweek Readers’ Choice™ Awards.

★★★★★5.0563 reviews
GMATLiveTeachStarts Nov 22
Josh Braslow, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Josh Braslow, 20+ years in test prep

Nov 22 · Josh Braslow
Sun · 9:30 AM to 12:30 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
EALiveTeachOnDemandStart anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

EXECUTIVE ASSESSMENT

with

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
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
GMATOnDemandStart 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

inequality

Expert replies
by adeel » Thu Aug 20, 2009 2:12 pm
Q, Is X -ve number??

1, 9x > 10x

2, x+3 is +ve

the answer is A according to gmat off guide

my Q is its easy if we take into account only integers to arrive to the ans A.

but how do u decide not to check for fractions

i.e if x =1/90

then 1 becomes 1/9 > 1/10

which is true

does the word number in the question suggest to check only for intergers,

if we need to check for fractions will the Q be only

is X +ve ??
Join the discussion
Source: — Data Sufficiency |

by DanaJ » Thu Aug 20, 2009 10:59 pm
Fractions are just "smaller" integers, I guess.

A can be re-written as:

9x > 10x - subtract 9x from each side

0 > x - x is clearly negative.

For such a simple exercise, I recommend you just solve it algebraically. Plugging in numbers is a risky strategy and should be used with caution! What if you pick the wrong numbers? I've already written something about it here.
Join the discussion

by navalpike » Fri Aug 21, 2009 7:19 am
Q, Is X -ve number??

1, 9x > 10x

2, x+3 is +ve

Just divide the first inequality by X. If x is positive We get:

9 > 10. Which is not possible

x must be negative because the sign would flip when dividing by a negative number.

9 < 10. Suff.

2. x + 3 > 0

x > -3

X can be any number, positive or negative or zero, greater than -3. Insuff.
Join the discussion

Re: inequality

by adilka » Fri Aug 21, 2009 8:24 am
Adeel, here's where you've gone wrong:
adeel wrote:i.e if x =1/90
then 1 becomes 1/9 > 1/10
If x=1/90 then

9x = 9/90 = 1/10
10x = 10/90 = 1/9

(1) Says 1/10>1/9, which is not true, hence 1/90 is not a valid solution for x
Join the discussion