BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

★★★★★5.0559 reviews
Vote for Target Test Prep, Newsweek Readers’ Choice Awards 2026
NEWSWEEK READERS’ CHOICE 2026

BIG NEWS! Target Test Prep has been nominated, and they’d love your vote!

TTP has worked incredibly hard to build the best test prep experience possible, and winning Newsweek’s 2026 Readers’ Choice Award for Best Test Prep would mean a lot to them. If TTP has helped you, they’d be incredibly grateful for your vote. You can vote once each day through September 9.

Vote for TTP
GMATLiveTeach 7 seats left
Chris Peckover
NEXT LIVE COHORT

Oct 13 to Jan 7, 2027

with Chris Peckover

Schedule
Tue, Thu · 8:00 to 10:00 PM ET
Included
40 live hours + 6 months of GMAT OnDemand
  • Live instruction and real-time questions
  • Class recordings and assigned practice
View class & enroll
Limited cohort · enrollment openTarget Test Prep
EALiveTeach 5 seats left
Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

Schedule
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll
Limited cohort · enrollment openTarget Test Prep
GMATOnDemand Start anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions
Start free 5-day trial
Read 559 reviewsTarget Test Prep

Compare the format, schedule, and included access before enrolling. Prices and seat counts shown reflect the supplied offer details.

DS question

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Data Sufficiency |
User avatar
Master | Next Rank: 500 Posts
Posts: 307
Joined: Sun Jul 11, 2010 7:52 pmFollowed by: 1 member
Thanked: 36 times
GMAT Score:640

by limestone » Mon Oct 11, 2010 8:51 pm
Hi,

1. x/y = 3 means x = 3y, you may see that x can not be equal to y while x = 3y. However, watch out!
If both x and y are Zero, then x = y = 3y
Insuf.

2. Same as 1. As x = 3y means x/y = 3

Insuf.

1&2. As 2 is the same to 1, 2 does not provide any additional information. Then 1 & 2 : insuf.

My answer E. Both 1 & 2 together are insuf.
"There is nothing either good or bad - but thinking makes it so" - Shakespeare.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Senior | Next Rank: 100 Posts
Posts: 82
Joined: Sat Aug 21, 2010 8:18 am
Location: India
Thanked: 5 times

by sumit.sinha » Tue Oct 12, 2010 2:45 am
limestone wrote:Hi,

1. x/y = 3 means x = 3y, you may see that x can not be equal to y while x = 3y. However, watch out!
If both x and y are Zero, then x = y = 3y
Insuf.

2. Same as 1. As x = 3y means x/y = 3

Insuf.

1&2. As 2 is the same to 1, 2 does not provide any additional information. Then 1 & 2 : insuf.

My answer E. Both 1 & 2 together are insuf.
Brilliant
Pick E
Cheers,
Sumit
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Legendary Member
Posts: 1309
Joined: Wed Mar 17, 2010 11:41 pmFollowed by: 5 members
Thanked: 33 times

by pradeepkaushal9518 » Tue Oct 12, 2010 4:07 am
i dont think its a good question
A SMALL TOWN GUY
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Legendary Member
Posts: 1460
Joined: Tue Dec 29, 2009 1:28 amFollowed by: 7 members
Thanked: 135 times

by selango » Tue Oct 12, 2010 5:24 am
Yes this is not a good question.

Frank always use authentic materials.
--Anand--
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Legendary Member
Posts: 1893
Joined: Sun May 30, 2010 11:48 pmFollowed by: 7 members
Thanked: 215 times

by kvcpk » Tue Oct 12, 2010 6:39 am
frank1 wrote:Is x = y ?
(1) x/y = 3
(2) x = 3y

Source:Nova Data Prep

OA later
IMO A.

(1) x/y = 3
x = 3y.
x=y only when x=y=0. But y cannot be 0. because it is in denominator.
Hence x can never equal y.
SUFF

(2) x = 3y
x =y=0 will suffice in this case. we dont have y in denominator.
x=3,y=1 will aslo satisfy.
hence INSUFF

pick A.

Hope this helps!!
"Once you start working on something,
don't be afraid of failure and don't abandon it.
People who work sincerely are the happiest."
Chanakya quotes (Indian politician, strategist and writer, 350 BC-275BC)
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Master | Next Rank: 500 Posts
Posts: 307
Joined: Sun Jul 11, 2010 7:52 pmFollowed by: 1 member
Thanked: 36 times
GMAT Score:640

by limestone » Tue Oct 12, 2010 10:10 am
Excellent answer! I forgot that y is the denominator in 1.
"There is nothing either good or bad - but thinking makes it so" - Shakespeare.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Legendary Member
Posts: 537
Joined: Fri Jan 22, 2010 10:06 pmFollowed by: 1 member
Thanked: 14 times

by frank1 » Wed Oct 13, 2010 8:35 pm
selango wrote:Yes this is not a good question.

Frank always use authentic materials.
Thanks for your suggestion
I normally donot use Nova's materials but
I think Nova is not bad publication when it comes to GMAT.
At least in this case.I consider this because this question is from DS book(The whole book is on DS....which i have not found with other publications..) and most questions seems like they are as per gmat standards.

This question is bit tricky.....even i dont agree with OA....thats why i have posted it here for comments....
I agree it is not good question......but i think it is not that bad either(out of gmat scope)

OA is A...
x/y equals 3 indicates the following two points:
1) x is not equal to 0, because then x/y would
equal 0, not 3
and
2) y is not equal to 0, because then x/y would
be an undefined infinite value and not 0.
Hence, x - y ≠ 0 or x ≠ y. The statement is
sufficient.
Now my question is CANNOT BE that statement 2 converted to Statement 1 using cross multipication ....that is where i am confused...
GMAT score is equally counted as your GPA and 78 clicks can change you life.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Junior | Next Rank: 30 Posts
Posts: 12
Joined: Thu Aug 12, 2010 6:25 pm

by Viktri » Wed Oct 13, 2010 8:56 pm
I and II are the same statement (cross multiplication as you mentioned) so the answer can only be D or E; the OA is incorrect.

frank1 wrote:
selango wrote:Yes this is not a good question.

Frank always use authentic materials.
Thanks for your suggestion
I normally donot use Nova's materials but
I think Nova is not bad publication when it comes to GMAT.
At least in this case.I consider this because this question is from DS book(The whole book is on DS....which i have not found with other publications..) and most questions seems like they are as per gmat standards.

This question is bit tricky.....even i dont agree with OA....thats why i have posted it here for comments....
I agree it is not good question......but i think it is not that bad either(out of gmat scope)

OA is A...
x/y equals 3 indicates the following two points:
1) x is not equal to 0, because then x/y would
equal 0, not 3
and
2) y is not equal to 0, because then x/y would
be an undefined infinite value and not 0.
Hence, x - y ≠ 0 or x ≠ y. The statement is
sufficient.
Now my question is CANNOT BE that statement 2 converted to Statement 1 using cross multipication ....that is where i am confused...
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Legendary Member
Posts: 866
Joined: Mon Aug 02, 2010 6:46 pm
Location: Gwalior, India
Thanked: 31 times

by goyalsau » Wed Oct 13, 2010 9:08 pm
Viktri wrote:I and II are the same statement (cross multiplication as you mentioned) so the answer can only be D or E; the OA is incorrect.
Answer should be D.
Saurabh Goyal
[email protected]
-------------------------


EveryBody Wants to Win But Nobody wants to prepare for Win.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Legendary Member
Posts: 537
Joined: Fri Jan 22, 2010 10:06 pmFollowed by: 1 member
Thanked: 14 times

by frank1 » Wed Oct 13, 2010 10:09 pm
I also agree with you.
Here is the official explanation from Nova DS prepation Book
Is x = y ?
(1) x/y = 3
(2) x = 3y
Statement (1): x/y = 3
x/y equals 3 indicates the following two points:
1) x is not equal to 0, because then x/y would
equal 0, not 3
and
2) y is not equal to 0, because then x/y would
be an undefined infinite value and not 0.
So, cross-multiplying the equation (valid because
we know the denominator y ≠ 0) yields x = 3y.
Subtracting y from both sides yields x - y = 2y.
Since y is not equal to 0, 2y is not equal to zero.
Hence, x - y ≠ 0 or x ≠ y. The statement is
sufficient.


Statement (2): x = 3y
If x = y = 0, x = 3y and still x = y is true.
But if x ≠ 0, since x = 3y, x would not equal y just
as in Statement (1).
We have a double case, and therefore the statement
is not sufficient.



The answer is (A).
GMAT score is equally counted as your GPA and 78 clicks can change you life.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1