MBA Spotlight Fair Join 40 AdComs at Virtual MBA + Masters Fair! Register to Reserve Your Spot | See Schedule | Win Prizes
close
It is currently 28 Nov 2021, 16:10
Register
GMAT Club Tests
Decision Tracker
My Rewards
New posts
New comers' posts

MBA Spotlight – Top 40 MBA Fair
Nov 29 - Dec 1, 2021

Register Schedule
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
M02-15
14 posts Go to First Unread Post
NEW TOPIC
POST REPLY
Downloads
My Bookmarks
Reviews
SORT BY:
Date
Kudos
Tags:
Find Similar Topics 

Show Tags
Hide Tags

User avatar
V
Bunuel
Math Expert
Joined: 02 Sep 2009
Posts: 82922
Premium Member CAT Tests Forum Quiz Mode Top Member of the Month
M02-15 [#permalink] New post  15 Sep 2014, 23:17
13
Bookmarks
Expert Reply
00:00
A
B
C
D
E

Difficulty:

15% (low)

Question Stats:

78% (01:11) correct 22% (01:30) wrong based on 674 sessions

Hide Show timer Statistics

If \(qs \neq 0\) is \(\frac{p}{q} \gt \frac{r^2}{s}\)?


(1) \(\frac{p}{q} \gt \frac{r}{s}\)

(2) \(r = 1\)
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
Most Helpful Expert Reply
User avatar
V
Bunuel
Math Expert
Joined: 02 Sep 2009
Posts: 82922
Premium Member CAT Tests Forum Quiz Mode Top Member of the Month
Re M02-15 [#permalink] New post  15 Sep 2014, 23:17
2
Kudos
3
Bookmarks
Expert Reply
Official Solution:


(1) \(\frac{p}{q} \gt \frac{r}{s}\). If \(\frac{p}{q}=2\) and \(r=s=1\) then the answer is YES but if for example \(\frac{p}{q}=2\) and \(r=s=2\) then the answer is NO. Not sufficient.

(2) \(r = 1\). Clearly insufficient.

(1)+(2) Since from (2) \(r=1\) then the question becomes whether \(\frac{p}{q}> \frac{1}{s}\) and statement (1) directly answer this question. Sufficient.


Answer: C
_________________
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
General Discussion
avatar
alokkumargupta
Intern
Intern
Joined: 24 Mar 2013
Posts: 17
Re: M02-15 [#permalink] New post  02 Apr 2015, 06:22
C for me too.

What's OA?
_________________
On the way ..
- Alok K G.
Signature Read More
avatar
Sripallavi
Intern
Intern
Joined: 05 Mar 2015
Posts: 2
Location: India
GPA: 3.83
WE:Web Development (Computer Software)
Re: M02-15 [#permalink] New post  15 Apr 2015, 01:56
1
Kudos
Bunuel wrote:
Official Solution:


(1) \(\frac{p}{q} \gt \frac{r}{s}\). If \(\frac{p}{q}=2\) and \(r=s=1\) then the answer is YES but if for example \(\frac{p}{q}=2\) and \(r=s=2\) then the answer is NO. Not sufficient.

(2) \(r = 1\). Clearly insufficient.

(1)+(2) Since from (2) \(r=1\) then the question becomes whether \(\frac{p}{q}> \frac{1}{s}\) and statement (1) directly answer this question. Sufficient.


Answer: C


I am confused a bit here , why can't either p or q be negative? because the only condition given is qs is not equals 0. then [p][/q] will be less than [r][/s]
User avatar
V
Bunuel
Math Expert
Joined: 02 Sep 2009
Posts: 82922
Premium Member CAT Tests Forum Quiz Mode Top Member of the Month
Re: M02-15 [#permalink] New post  15 Apr 2015, 03:02
1
Kudos
Expert Reply
Sripallavi wrote:
Bunuel wrote:
Official Solution:


(1) \(\frac{p}{q} \gt \frac{r}{s}\). If \(\frac{p}{q}=2\) and \(r=s=1\) then the answer is YES but if for example \(\frac{p}{q}=2\) and \(r=s=2\) then the answer is NO. Not sufficient.

(2) \(r = 1\). Clearly insufficient.

(1)+(2) Since from (2) \(r=1\) then the question becomes whether \(\frac{p}{q}> \frac{1}{s}\) and statement (1) directly answer this question. Sufficient.


Answer: C


I am confused a bit here , why can't either p or q be negative? because the only condition given is qs is not equals 0. then [p][/q] will be less than [r][/s]


It does not matter.

The question asks: is \(\frac{p}{q} \gt \frac{r^2}{s}\)? (2) says that \(r = 1\). So, the question basically asks whether \(\frac{p}{q} \gt \frac{1}{s}\).

(1) says that \(\frac{p}{q} \gt \frac{1}{s}\), thus giving an YES answer to the question.
_________________
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
avatar
Sripallavi
Intern
Intern
Joined: 05 Mar 2015
Posts: 2
Location: India
GPA: 3.83
WE:Web Development (Computer Software)
Re: M02-15 [#permalink] New post  15 Apr 2015, 21:37
Bunuel wrote:
Sripallavi wrote:
Bunuel wrote:
Official Solution:


(1) \(\frac{p}{q} \gt \frac{r}{s}\). If \(\frac{p}{q}=2\) and \(r=s=1\) then the answer is YES but if for example \(\frac{p}{q}=2\) and \(r=s=2\) then the answer is NO. Not sufficient.

(2) \(r = 1\). Clearly insufficient.

(1)+(2) Since from (2) \(r=1\) then the question becomes whether \(\frac{p}{q}> \frac{1}{s}\) and statement (1) directly answer this question. Sufficient.


Answer: C


I am confused a bit here , why can't either p or q be negative? because the only condition given is qs is not equals 0. then [p][/q] will be less than [r][/s]


It does not matter.

The question asks: is \(\frac{p}{q} \gt \frac{r^2}{s}\)? (2) says that \(r = 1\). So, the question basically asks whether \(\frac{p}{q} \gt \frac{1}{s}\).

(1) says that \(\frac{p}{q} \gt \frac{1}{s}\), thus giving an YES answer to the question.



So, basically as this is a question based on fractions we do not consider whether they are positive or negative. Is it right understanding?
User avatar
V
Bunuel
Math Expert
Joined: 02 Sep 2009
Posts: 82922
Premium Member CAT Tests Forum Quiz Mode Top Member of the Month
Re: M02-15 [#permalink] New post  16 Apr 2015, 03:25
1
Kudos
Expert Reply
Sripallavi wrote:
So, basically as this is a question based on fractions we do not consider whether they are positive or negative. Is it right understanding?


For this particular question, we can get the answer without knowing the signs of the variables because we need to know whether one fraction is greater than another. You cannot generalize and extrapolate this to other questions involving fractions.
_________________
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
avatar
G
OC2910
Manager
Manager
Joined: 03 Apr 2015
Posts: 244
GMAT 1: 650 Q49 V31
GPA: 3.59
Reviews Badge
Re: M02-15 [#permalink] New post  09 Apr 2016, 23:10
does it simply mean as r^2 = r therefore according to statement 1 it is greater??
User avatar
V
Bunuel
Math Expert
Joined: 02 Sep 2009
Posts: 82922
Premium Member CAT Tests Forum Quiz Mode Top Member of the Month
Re: M02-15 [#permalink] New post  10 Apr 2016, 03:28
Expert Reply
oishik2910 wrote:
does it simply mean as r^2 = r therefore according to statement 1 it is greater??


Not sure I can follow what you mean. please go through the discussion above an elaborate your question. Thank you.
_________________
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
avatar
B
Alecita
Intern
Intern
Joined: 02 Jun 2015
Posts: 17
Location: United States
Re: M02-15 [#permalink] New post  24 Apr 2018, 16:12
4
Kudos
Q and S cannot be zero IS P/Q > R^2/S ?? I simplified the stem to is PS > QR^2 ??


1) P/Q > R/S

Simplified the fraction by crossing multiply PS > QR

P=2 S=1 Q=1 R=1 then 2 > 1
Is 2 > 1 ? Yes

P= -2 S=1 Q=1 R=-3 then -2 > -3
Is -2 > 9 No

INSUFFICIENT


2) R=1
Then the question stem becomes....Is PS>Q ??

INSUFFICIENT


Taking 1 and 2 together
PS > QR and R=1
It becomes PS > Q ALWAYS YES SUFFICIENT

Thanks! :-)
Alecita
avatar
B
Amureabc
Intern
Intern
Joined: 10 Aug 2014
Posts: 11
Re M02-15 [#permalink] New post  25 Oct 2019, 09:25
I think this is a poor-quality question. i believe the answer is E.
S1 p/q > r/s can be yes or no
e.g. 1/2 > 1/3 - yes
- 1/2 > -1/3 - no
not suffucient
S2 - clearly insufficient
s 1and 2 still not sufficient together
answer should be E not C.

pls. enlighten me and point out my ignorance.
User avatar
V
Bunuel
Math Expert
Joined: 02 Sep 2009
Posts: 82922
Premium Member CAT Tests Forum Quiz Mode Top Member of the Month
Re: M02-15 [#permalink] New post  25 Oct 2019, 09:30
Expert Reply
Amureabc wrote:
I think this is a poor-quality question. i believe the answer is E.
S1 p/q > r/s can be yes or no
e.g. 1/2 > 1/3 - yes
- 1/2 > -1/3 - no
not suffucient
S2 - clearly insufficient
s 1and 2 still not sufficient together
answer should be E not C.

pls. enlighten me and point out my ignorance.


How is -1/2 > -1/3 true?

-1/2 < -1/3.
_________________
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
User avatar
V
Archit3110
GMAT Club Legend
GMAT Club Legend
Joined: 18 Aug 2017
Status:You learn more from failure than from success.
Posts: 7117
Location: India
Concentration: Sustainability, Marketing
GPA: 4
WE:Marketing (Energy and Utilities)
GMAT ToolKit User Reviews Badge CAT Tests
Re: M02-15 [#permalink] New post  26 Oct 2019, 06:40
Bunuel wrote:
If \(qs \neq 0\) is \(\frac{p}{q} \gt \frac{r^2}{s}\)?


(1) \(\frac{p}{q} \gt \frac{r}{s}\)

(2) \(r = 1\)


#1
\(\frac{p}{q} \gt \frac{r}{s}\)
we cannot conclsively say that \(\frac{p}{q} \gt \frac{r^2}{s}\)
as value of r is not clear
insufficient
#2
r=1 ; insufficient
as value of p,q,s not know
from 1 &2
r=1 and \(\frac{p}{q} \gt \frac{r}{s}\)
so yes \(\frac{p}{q} \gt \frac{r^2}{s}\)
IMO C
avatar
B
gims
Intern
Intern
Joined: 15 Aug 2020
Posts: 3
Location: Indonesia
Schools: UC Davis (A)
GPA: 3.32
Re: M02-15 [#permalink] New post  29 Oct 2020, 23:33
I chose the wrong answer before, then I saw the explanation and was confused at first. After reviewed it again, I finally got it.
here's my approach:

the question is p/q > r2/s?
I factorised this into p/q > r.r/s

then, see the statement.

(1) p/q > r/s

from this, we know that p/q > r/s but we don't know what is r? not sufficient.


(2) r=1

we know that r=1 but we don't know p/q > r/s ? not sufficient.

in combination (1) & (2) we know that p/q > r.1/s so, it's sufficient. (C)
GMAT Club Bot
gmatclubot
Re: M02-15 [#permalink]
29 Oct 2020, 23:33
NEW TOPIC
POST REPLY
Downloads
My Bookmarks
Reviews
Moderators:
chetan2u
Math Expert
10604 posts
Bunuel
Math Expert
82922 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