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

It is currently 16 Nov 2018, 16:33

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
Events & Promotions in November
PrevNext
SuMoTuWeThFrSa
28293031123
45678910
11121314151617
18192021222324
2526272829301
Open Detailed Calendar
  • Free GMAT Strategy Webinar

     November 17, 2018

     November 17, 2018

     07:00 AM PST

     09:00 AM PST

    Nov. 17, 7 AM PST. Aiming to score 760+? Attend this FREE session to learn how to Define your GMAT Strategy, Create your Study Plan and Master the Core Skills to excel on the GMAT.
  • GMATbuster's Weekly GMAT Quant Quiz # 9

     November 17, 2018

     November 17, 2018

     09:00 AM PST

     11:00 AM PST

    Join the Quiz Saturday November 17th, 9 AM PST. The Quiz will last approximately 2 hours. Make sure you are on time or you will be at a disadvantage.

Is it true that l ≠ m ?

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

Hide Tags

Director
Director
User avatar
B
Status: I don't stop when I'm Tired,I stop when I'm done
Joined: 11 May 2014
Posts: 537
Location: Bangladesh
Concentration: Finance, Leadership
GPA: 2.81
WE: Business Development (Real Estate)
Is it true that l ≠ m ?  [#permalink]

Show Tags

New post 06 Jun 2016, 10:16
8
00:00
A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

68% (01:15) correct 32% (01:01) wrong based on 157 sessions

HideShow timer Statistics

Is it true that l ≠ m ?

(1) lm = 10

(2) mn = 10

_________________

Md. Abdur Rakib

Please Press +1 Kudos,If it helps
Sentence Correction-Collection of Ron Purewal's "elliptical construction/analogies" for SC Challenges

Board of Directors
User avatar
P
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4212
Location: India
GPA: 3.5
WE: Business Development (Commercial Banking)
GMAT ToolKit User Premium Member
Is it true that l ≠ m ?  [#permalink]

Show Tags

New post 06 Jun 2016, 10:46
AbdurRakib wrote:
Is it true that l ≠ m ?

(1) lm = 10

(2) mn = 10



(1) lm = 10

here l & m can take any values

l = 1 ; m = 10
l = 2 ; m = 5
l = 4 ; m = 2.5
..........

(2) mn = 10

Same here -

n = 1 ; m = 10
n = 2 ; m = 5
n = 4 ; m = 2.5
..........


Combine (1) and (2)

lm = mn

l = n

So, THe 2 statements together are not sufficient to solve this question, IMHO (E)....

_________________

Thanks and Regards

Abhishek....

PLEASE FOLLOW THE RULES FOR POSTING IN QA AND VA FORUM AND USE SEARCH FUNCTION BEFORE POSTING NEW QUESTIONS

How to use Search Function in GMAT Club | Rules for Posting in QA forum | Writing Mathematical Formulas |Rules for Posting in VA forum | Request Expert's Reply ( VA Forum Only )

SC Moderator
User avatar
D
Joined: 13 Apr 2015
Posts: 1689
Location: India
Concentration: Strategy, General Management
GMAT 1: 200 Q1 V1
GPA: 4
WE: Analyst (Retail)
GMAT ToolKit User Premium Member
Is it true that l ≠ m ?  [#permalink]

Show Tags

New post 06 Jun 2016, 10:59
AbdurRakib wrote:
Is it true that l ≠ m ?

(1) lm = 10

(2) mn = 10


St1: lm = 10
l = sqrt(10) and n = sqrt(10) --> l = m
l = 10 and m = 1 --> l ≠ m
Not Sufficient

St2: mn = 10 --> Clearly Insufficient as we have no info about l

Combining St1 and St2: l = sqrt(10); m = sqrt(10) and n = sqrt(10) --> l = m
l = 10; m = 1 and n = 10 --> l ≠ m
Not Sufficient

Answer: E
Board of Directors
User avatar
P
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4212
Location: India
GPA: 3.5
WE: Business Development (Commercial Banking)
GMAT ToolKit User Premium Member
Re: Is it true that l ≠ m ?  [#permalink]

Show Tags

New post 14 Oct 2016, 11:12
GMATGoals390 wrote:
But wouldn't it be A since you can prove that l does not equal m which satisfies the question?


Bro, That's the first part of the story...

The path of solving any DS problem is as follows -
Attachment:
eHfwSmQ.png
eHfwSmQ.png [ 18.34 KiB | Viewed 1312 times ]


So, we have to go all the way till (E) for this particular problem..

Hope this helps !! :-D
_________________

Thanks and Regards

Abhishek....

PLEASE FOLLOW THE RULES FOR POSTING IN QA AND VA FORUM AND USE SEARCH FUNCTION BEFORE POSTING NEW QUESTIONS

How to use Search Function in GMAT Club | Rules for Posting in QA forum | Writing Mathematical Formulas |Rules for Posting in VA forum | Request Expert's Reply ( VA Forum Only )

Manager
Manager
User avatar
S
Joined: 05 Dec 2016
Posts: 244
Concentration: Strategy, Finance
GMAT 1: 620 Q46 V29
GMAT ToolKit User
Re: Is it true that l ≠ m ?  [#permalink]

Show Tags

New post 14 Dec 2017, 05:46
(1) l*m=10^1/2*10^1/2 NO, they are equal
l*m=2*5 YES, they are not equal
Insufficient
(2) no info about l
Insufficient
(1)+(2)
example from (1) statement applies to both statements as well and shows that it is still insufficient

Answer E
GMAT Club Bot
Re: Is it true that l ≠ m ? &nbs [#permalink] 14 Dec 2017, 05:46
Display posts from previous: Sort by

Is it true that l ≠ m ?

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


Copyright

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®.