It is currently 14 Nov 2018, 21:52
My Tests

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

a > 0

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Moderator
Moderator
User avatar
Joined: 18 Apr 2015
Posts: 4876
Followers: 74

Kudos [?]: 971 [0], given: 4479

CAT Tests
a > 0 [#permalink] New post 08 Sep 2018, 23:57
Expert's post
00:00

Question Stats:

86% (00:29) correct 13% (00:39) wrong based on 15 sessions
\(a > 0\)

Quantity A
Quantity B
\(5ab\)
\(10ab\)


A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.

Kudos for R.A.E
[Reveal] Spoiler: OA

_________________

Get the 2 FREE GREPrepclub Tests

1 KUDOS received
GRE Instructor
User avatar
Joined: 10 Apr 2015
Posts: 1175
Followers: 43

Kudos [?]: 1047 [1] , given: 6

CAT Tests
Re: a > 0 [#permalink] New post 09 Sep 2018, 06:53
1
This post received
KUDOS
Expert's post
Carcass wrote:
\(a > 0\)

Quantity A
Quantity B
\(5ab\)
\(10ab\)



We can solve this question using matching operations

Given:
Quantity A: 5ab
Quantity B: 10ab

Since a is POSITIVE, we can safely divide both quantities by a to get:
Quantity A: 5b
Quantity B: 10b

We can also safely divide both quantities by 5 to get:
Quantity A: b
Quantity B: 2b

Finally, let's subtract b from both quantities to get:
Quantity A: 0
Quantity B: b

Since b could be positive, negative or zero, the correct answer is D


RELATED VIDEO FROM OUR COURSE

_________________

Brent Hanneson – Creator of greenlighttestprep.com
Image
Sign up for our free GRE Question of the Day emails

Moderator
Moderator
User avatar
Joined: 18 Apr 2015
Posts: 4876
Followers: 74

Kudos [?]: 971 [0], given: 4479

CAT Tests
Re: a > 0 [#permalink] New post 09 Sep 2018, 07:50
Expert's post
ab or 5 ab (simplified), which one is greatest ??

we do not have any information about b. The two statements are not sufficient to determine which one is the biggest.

The answer is D


Regards
_________________

Get the 2 FREE GREPrepclub Tests

Intern
Intern
Joined: 27 Aug 2018
Posts: 36
Followers: 0

Kudos [?]: 16 [0], given: 7

Re: a > 0 [#permalink] New post 10 Sep 2018, 09:07
B can be any value, so the answer is D
Re: a > 0   [#permalink] 10 Sep 2018, 09:07
Display posts from previous: Sort by

a > 0

  Question banks Downloads My Bookmarks Reviews Important topics  


GRE Prep Club Forum Home| About| Terms and Conditions and Privacy Policy| GRE Prep Club Rules| Contact

Powered by phpBB © phpBB Group

Kindly note that the GRE® test is a registered trademark of the Educational Testing Service®, and this site has neither been reviewed nor endorsed by ETS®.