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
Start free 5-day trial
Read 563 reviewsTarget Test Prep

Inequalities Solutions (MGMAT Prep Question)

Expert replies
Post new topic Post Reply
Subscribe topic
Previous Topic Next Topic
Junior | Next Rank: 30 Posts
Posts: 26
Joined: Thu Oct 25, 2012 2:08 pm
by ostrowskiamy » Wed Feb 13, 2013 7:31 pm
Hi folks! Thanks SO much for the many answers I received to my previous post (I moved onto inequalities in the interim, but I'll loop back on those answers with some well-deserved "thank you's" and responses asap!

This one threw me:

"If (AB)/7 > (1/14) and A = B, which of the following must be greater than 1?

A) A+B
B) 1-A
C) 2A(^2)
D) A(^2)-(1/2)
E) A

The solution provided explains that:

14AB > 7 (cross multiply to get that)

2AB>1 (then, divide both sides by 7)

= 2A(^2) > 1, so the answer is C.

...Why divide by 7? I thought we would need to divide both sides by 14, to get the inequality alone??

Thank you in advance for any insights/tips!

Best,
Amy
Top
Join the discussion
Source: — Problem Solving |

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 451
Joined: Thu Jan 21, 2010 11:58 amFollowed by: 120 members
Location: New York City
Thanked: 188 times
GMAT Score:770

by Tommy Wallach » Wed Feb 13, 2013 7:38 pm
Hey Amy,

Basically, you want to divide by 7 because then you won't have any fractions. Isolating the AB is nice, but it's nicer to have all integers (also, having something greater than 1 is helpful, considering what the question was asking)! You could always do it the other way...

AB > 1/2

A^2 > 1/2

Then, you could look at the answer choices, and see that if you multiplied both sides of your current equation by 2, you'd end up with an answer choice:

2A^2 > 1

Hope that helps!

-t
Tommy Wallach, Company Expert
ManhattanGMAT

If you found this posting mega-helpful, feel free to thank and/or follow me!
Top
Join the discussion
Junior | Next Rank: 30 Posts
Posts: 26
Joined: Thu Oct 25, 2012 2:08 pm

by ostrowskiamy » Wed Feb 13, 2013 7:42 pm
Thanks so much, T! So I CAN just divide 7 by...itself? Ha, I don't recall ever actively doing this! It just seems like a strange concept, to divide something by itself when nothing needs to be cancelled. If it's 'allowed' though..I'll run with it!
Top
Join the discussion
Junior | Next Rank: 30 Posts
Posts: 26
Joined: Thu Oct 25, 2012 2:08 pm

by ostrowskiamy » Wed Feb 13, 2013 7:47 pm
...One more inequality question while I have you, if that's alright:

(x+1)(^2) < 36
sq.root of this is < 36
I x +1 I < 6
-7 < x < 5

I understand why I need to put the absolute value brackets in, during the third step...but I think that's mostly because I know I'm working with absolute values & just studied that section of the book! How can I remember to do that on test day? Should I ALWAYS do that when working with inequalities, where part of the solution (here, the variable) is in parentheses?

Thanks again! Your answers are extremely helpful and well-explained!

Best,
Amy
Top
Join the discussion

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 451
Joined: Thu Jan 21, 2010 11:58 amFollowed by: 120 members
Location: New York City
Thanked: 188 times
GMAT Score:770

by Tommy Wallach » Wed Feb 13, 2013 8:06 pm
Hey Amy,

Annoying as it may sound, could you post it in a separate thread, then PM me about it. We like to keep threads 1 question per...

-t
Tommy Wallach, Company Expert
ManhattanGMAT

If you found this posting mega-helpful, feel free to thank and/or follow me!
Top
Join the discussion
Junior | Next Rank: 30 Posts
Posts: 26
Joined: Thu Oct 25, 2012 2:08 pm

by ostrowskiamy » Wed Feb 13, 2013 8:12 pm
Hey, I'm getting some awesome free help - it is NOT a problem at all! :)
Top
Join the discussion