Events & Promotions
|
|
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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Sep 1507:00 PM EDT
-09:00 PM EST
Elite scores are possible when you enroll in a powerful GMAT course, taught live online + 6 months access to TTP OnDemand video courses included! Class starts Tues/Thurs Sept. 15, 2026 - Nov. 15, 2027, 7:00pm-9:00pm EST
Sep 2107:00 PM EDT
-10:00 PM EDT
Boost your GMAT score in less than one month in a live online class + 6 months access to TTP OnDemand video courses included! Class starts Mon, Tues, Wed, Thur, Fri Sept. 21, 2026 - Oct. 9, 2027, 7:00pm-10:00pm EST
16 Oct 2008, 16:06
Kudos
Bookmarks
Hi,
I am working on the Gmat Study Guide (wikibook of gmatclub) on the Algebra section. I have a question regarding Basic Rules for Inequalities:
Example: a>b>0, c>d>0
The guide says that "you can only apply substractions and divisions when their signs are in the opposite directions:
* a>b, db-c
* a/d>b/c
* You cannot say a/c>b/c. It is WRONG.
My questions are:
1. when it says "their signs", which is it referring to? Is it a and b, d and c or what?
2. Why cannot you say a/c>b>c while you assume at the beginning at a>b>0 and c>d>0.
Can someone explain to me, please?
Thanks
Natalie
I am working on the Gmat Study Guide (wikibook of gmatclub) on the Algebra section. I have a question regarding Basic Rules for Inequalities:
Example: a>b>0, c>d>0
The guide says that "you can only apply substractions and divisions when their signs are in the opposite directions:
* a>b, db-c
* a/d>b/c
* You cannot say a/c>b/c. It is WRONG.
My questions are:
1. when it says "their signs", which is it referring to? Is it a and b, d and c or what?
2. Why cannot you say a/c>b>c while you assume at the beginning at a>b>0 and c>d>0.
Can someone explain to me, please?
Thanks
Natalie
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Quantitative Questions Forum
Still interested in this question? Check out the "Best Topics" block below for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
16 Oct 2008, 17:14
Kudos
Bookmarks
[quote="nganle08"]Thanks for the answer. and sorry for the typo.
the question is why it is wrong to say a/c>b/c while a>b>0 and c>d>0?
what has d got to do with it ??/
if a,b,c are +ve and a>b>0 and c>0
then sure
a/c>b/c
the question is why it is wrong to say a/c>b/c while a>b>0 and c>d>0?
what has d got to do with it ??/
if a,b,c are +ve and a>b>0 and c>0
then sure
a/c>b/c
