GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 21 Sep 2018, 11:04

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.

Close

Request Expert Reply

Confirm Cancel

Is x greater than y?

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 49300
Is x greater than y?  [#permalink]

Show Tags

New post 13 Mar 2017, 10:45
00:00
A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

74% (00:51) correct 26% (00:43) wrong based on 59 sessions

HideShow timer Statistics

Retired Moderator
avatar
V
Joined: 28 May 2014
Posts: 528
GMAT 1: 730 Q49 V41
GMAT ToolKit User Premium Member
Is x greater than y?  [#permalink]

Show Tags

New post Updated on: 13 Mar 2017, 20:52
3
(1) y>0; it doesn't provide any information about x. Insufficient.

(2) x = y^2;
If y = 0 or 1, x = y.
If y = 2 or -2, x = 4 > y. Hence, insufficient.

(1) & (2) together,
y >0.
Then, if y = 2, x = 4 > y.
But, if y = 0.4, x = 0.16< y. Hence, insufficient.

Answer E.
_________________

440 to 730: If I Can, You Can Too


Originally posted by saswata4s on 13 Mar 2017, 10:57.
Last edited by saswata4s on 13 Mar 2017, 20:52, edited 1 time in total.
Senior Manager
Senior Manager
User avatar
D
Joined: 06 Jan 2015
Posts: 474
Location: India
Concentration: Operations, Finance
GPA: 3.35
WE: Information Technology (Computer Software)
Premium Member
Re: Is x greater than y?  [#permalink]

Show Tags

New post 13 Mar 2017, 19:27
Bunuel wrote:
Is x greater than y?

(1) y > 0
(2) x = y^2


(1) y > 0 -- Doesn't provide any info about x -- Not Suff

2)x = y^2 -- If y=2 then x=4 gives x>y

If y=0.2 then x=0.04 then x<y

Hence Not Suff

Combining both also

If y=2 then x=4 gives x>y

If y=0.2 then x=0.04 then x<y

Not Suff

Hence E
_________________

आत्मनॊ मोक्षार्थम् जगद्धिताय च

Resource: GMATPrep RCs With Solution

Senior Manager
Senior Manager
User avatar
B
Status: Come! Fall in Love with Learning!
Joined: 05 Jan 2017
Posts: 457
Location: India
Premium Member
Re: Is x greater than y?  [#permalink]

Show Tags

New post 15 Mar 2017, 06:21
St 1: y>0. no information about x. INSUFFICIENT
ST 2: x = y^2.
for y = 0,1: x = y
for y<0, x>y
for 0<y<1, x<y
for y>1, x>y

4 cases. INSUFFICIENT

St 1 & St 2: the cases will be
for y = 1: x = y
for 0<y<1, x<y
for y>1, x>y

3 Cases. INSUFFICIENT

Option E
_________________

GMAT Mentors
Image

Target Test Prep Representative
User avatar
G
Status: Head GMAT Instructor
Affiliations: Target Test Prep
Joined: 04 Mar 2011
Posts: 2835
Re: Is x greater than y?  [#permalink]

Show Tags

New post 20 Mar 2017, 06:57
Bunuel wrote:
Is x greater than y?

(1) y > 0
(2) x = y^2


We need to determine whether x > y.

Statement One Alone:

y > 0

Since we do not know anything about x, statement one is not sufficient to answer the question.

Statement Two Alone:

x = y^2

Using the information in statement two, we see that x could be greater than or less than y. For example, if x = 1/4 and y = 1/2, then x is not greater than y. However, if x = 4 and y = 2, then x is greater than y. Statement two alone is not sufficient to answer the question.

Statements One and Two Together:

Using the information from statements one and two, we still cannot determine whether x is greater than y. Once again, if x = 1/4 and y = 1/2, then x is not greater than y. However, if x = 4 and y = 2, then x is greater than y.

Answer: E
_________________

Jeffery Miller
Head of GMAT Instruction

GMAT Quant Self-Study Course
500+ lessons 3000+ practice problems 800+ HD solutions

Re: Is x greater than y? &nbs [#permalink] 20 Mar 2017, 06:57
Display posts from previous: Sort by

Is x greater than y?

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  

Events & Promotions

PREV
NEXT


GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.