MBA Spotlight – The Biggest MBA Fair is June 13-14
close
It is currently 29 May 2023, 19:29
Register
GMAT Club Tests
Decision Tracker
My Rewards
New posts
New comers' posts

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.

Go to My Error Log Learn more
Close

Request Expert Reply

Confirm Cancel

If r > 0, is rs < 0 ? (1) s < 0 (2) s < r

5 posts Go to First Unread Post
Print view
NEW TOPIC
POST REPLY
Downloads
My Bookmarks
Reviews
SORT BY:
Date
Kudos
User avatar
L
Bunuel
Math Expert
Joined: 02 Sep 2009
Posts: 88716
CAT Tests Forum Quiz Mode Top Member of the Month
If r > 0, is rs < 0 ? (1) s < 0 (2) s < r [#permalink] New post  07 Nov 2017, 23:46
8
Bookmarks
Expert Reply
Quiz Dashboard Attempt only this question Same topic and source Same topic and difficulty Same source and difficulty Random Chronological Reverse chronological Learn more
00:00
A
B
C
D
E

Difficulty:

5% (low)

Question Stats:

93% (00:27) correct 7% (00:54) wrong based on 381 sessions

Hide Show timer Statistics

If r > 0, is rs < 0 ?

(1) s < 0

(2) s < r
ShowHide Answer
Official Answer
Official Answer and Stats are available only to registered users. Register/Login.

_________________
New to the GMAT CLUB Forum?

My Signature Questions' Collection:


What are GMAT Club Tests?
Extra-hard Quant Tests with Brilliant Analytics
Signature Read More
Quiz Dashboard Attempt only this question Same topic and source Same topic and difficulty Same source and difficulty Random Chronological Reverse chronological Learn more
avatar
B
Abhishiek
Intern
Intern
Joined: 28 Dec 2010
Posts: 40
Re: If r > 0, is rs < 0 ? (1) s < 0 (2) s < r [#permalink] New post  07 Nov 2017, 23:55
r<0
So rs<0 can be answered if s>0 or s<0.

1. Sufficient.
2. s could be <0 or >0.
Not Sufficient.

A.
User avatar
L
Mo2men
RSM Erasmus Moderator
Joined: 26 Mar 2013
Posts: 2505
Concentration: Operations, Strategy
Schools: Erasmus (II)
Reviews Badge
Re: If r > 0, is rs < 0 ? (1) s < 0 (2) s < r [#permalink] New post  08 Nov 2017, 05:21
1
Bookmarks
Bunuel wrote:
If r > 0, is rs < 0 ?

(1) s < 0

(2) s < r



\(r > 0\), then question might be rephrased to be, is \(s < 0\) ?

1) s < 0

The facts tells us a fact

Sufficient

(2) s < r

Let r =2 & s = 1......Answer is No

Let r =2 & s =-1......Answer is Yes

Insufficient

Answer: A
User avatar
L
MathRevolution
Math Revolution GMAT Instructor
Joined: 16 Aug 2015
Posts: 10929
GMAT 1: 760 Q51 V42
GPA: 3.82
Re: If r > 0, is rs < 0 ? (1) s < 0 (2) s < r [#permalink] New post  06 Oct 2020, 11:24
Forget the conventional way to solve DS questions.

We will solve this DS question using the variable approach.

The first step of the Variable Approach: The first step and the priority is to modify and recheck the original condition and the question to suit the type of information given in the condition.

To master the Variable Approach, visit https://www.mathrevolution.com and check our lessons and proven techniques to score high in DS questions.

Learn the 3 steps. [Watch lessons on our website to master these 3 steps]

Step 1 of the Variable Approach: Modifying and rechecking the original condition and the question.

We have to find whether rs < 0.

=> It is given that r > 0 and if rs < 0, that means 's' should be negative [s < 0]

We have to find whether s < 0

Condition(1) tells us that s < 0.

=> Is s < 0 - YES

Since the answer is unique YES, condition(1) alone is sufficient by CMT 1.


Condition(2) tells us that s < r .

=> 's' could be [s < 0 or s > 0]

Since the answer is not a unique YES or NO ,condition(2) alone is not sufficient by CMT 1.

Condition(1) alone is sufficient.

So, A is the correct answer.

Answer: A


SAVE TIME: By Variable Approach[MODIFICATION], check the condition quickly and separately and mark answer as A or B.
_________________
MathRevolution: The World's Most "Complete" GMAT Math Course!
Score an excellent Q49-51 just like 70% of our students.
[Free] On-demand trial course (7 days) - 100 hours of video lessons, 490 lesson topics, and 2,000 questions.
[Course] Starting at $79 for on-demand and $60 for tutoring per hour
Signature Read More
User avatar
bumpbot
Non-Human User
Joined: 09 Sep 2013
Posts: 27821
Re: If r > 0, is rs < 0 ? (1) s < 0 (2) s < r [#permalink] New post  11 Jan 2023, 10:46
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________
GMAT Books | GMAT Club Tests | Best Prices on GMAT Courses | GMAT Mobile App | Math Resources | Verbal Resources
Signature Read More
GMAT Club Bot
gmatclubot
Re: If r > 0, is rs < 0 ? (1) s < 0 (2) s < r [#permalink]
11 Jan 2023, 10:46
NEW TOPIC
POST REPLY
Downloads
My Bookmarks
Reviews
Moderator:
Bunuel
Math Expert
88716 posts

cron

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne
Main navigation
GMAT Resources
Partners
MBA Resources
www.gmac.com|www.mba.com | | GMAT Club Rules | Terms and Conditions