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

It is currently 07 Dec 2019, 19:17
Register
GMAT Club Tests
Decision Tracker
My Rewards
New comers' posts
New posts
Unanswered

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
CLICK HERE TO HIDE/SHOW EVENTS

Is u>w? 1) u=∣w∣ 2) w=∣u∣

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics
Print view
First unread post
 
  Sort by Date Sort by Kudos  
Search for:
 
PREVIOUS TOPIC
NEXT TOPIC
Author Message
TAGS:

Hide Tags

Find Similar Topics 
Math Revolution GMAT Instructor
User avatar
V
Joined: 16 Aug 2015
Posts: 8235
GMAT 1: 760 Q51 V42
GPA: 3.82
Is u>w? 1) u=∣w∣ 2) w=∣u∣  [#permalink]

Show Tags

New post 24 Jul 2017, 01:02
2
00:00
A
B
C
D
E

Difficulty:

  65% (hard)

Question Stats:

43% (01:26) correct 58% (01:06) wrong based on 77 sessions

HideShow timer Statistics

Is u>w?

1) u=∣w∣
2) w=∣u∣
Spoiler: OA

_________________
MathRevolution: Finish GMAT Quant Section with 10 minutes to spare
The one-and-only World’s First Variable Approach for DS and IVY Approach for PS with ease, speed and accuracy.
"Only $79 for 1 month Online Course"
"Free Resources-30 day online access & Diagnostic Test"
"Unlimited Access to over 120 free video lessons - try it yourself"
Signature Read More
Math Expert
avatar
V
Joined: 02 Aug 2009
Posts: 8284
Reviews Badge
Top Member of the Month
Re: Is u>w? 1) u=∣w∣ 2) w=∣u∣  [#permalink]

Show Tags

New post 24 Jul 2017, 05:42
2
MathRevolution wrote:
Is u>w?

1) u=∣w∣
2) w=∣u∣



Hi..
We are looking for is u>W...

Let's see the statements..
1) u=|W|
U is POSITIVE..
But if W is positive, ans is YES
If W is NEGATIVE, ans is NO
Insufficient

2) W=|u|
This tells us W is positive..
If u is positive, ans is NO
If u is NEGATIVE, ans is Again NO
Sufficient

B
_________________
1) Absolute modulus : http://gmatclub.com/forum/absolute-modulus-a-better-understanding-210849.html#p1622372
2)Combination of similar and dissimilar things : http://gmatclub.com/forum/topic215915.html
3) effects of arithmetic operations : https://gmatclub.com/forum/effects-of-arithmetic-operations-on-fractions-269413.html
4) Base while finding % increase and % decrease : https://gmatclub.com/forum/percentage-increase-decrease-what-should-be-the-denominator-287528.html


GMAT Expert
Signature Read More
Intern
Intern
User avatar
B
Joined: 06 Feb 2016
Posts: 46
Location: Poland
Concentration: Finance, Accounting
GMAT 1: 730 Q49 V41
GPA: 3.5
Re: Is u>w? 1) u=∣w∣ 2) w=∣u∣  [#permalink]

Show Tags

New post 24 Jul 2017, 12:10
Good question with a usual trap.
(2) w=|u| which means u is either equal to w or, if it is negative, it is smaller than u. So, (2) is sufficient to answer the question.
Intern
Intern
User avatar
B
Joined: 29 May 2017
Posts: 10
Re: Is u>w? 1) u=∣w∣ 2) w=∣u∣  [#permalink]

Show Tags

New post 24 Jul 2017, 20:57
Great question...just have one query tho
Statement 2 gives us yes and no both right? Or not? Can someone explain please? Thank u..:)

Sent from my X9009 using GMAT Club Forum mobile app
Senior PS Moderator
User avatar
V
Joined: 26 Feb 2016
Posts: 3300
Location: India
GPA: 3.12
Re: Is u>w? 1) u=∣w∣ 2) w=∣u∣  [#permalink]

Show Tags

New post 24 Jul 2017, 22:22
pritha.k wrote:
Great question...just have one query tho
Statement 2 gives us yes and no both right? Or not? Can someone explain please? Thank u..:)

Sent from my X9009 using GMAT Club Forum mobile app


Specifically for statement 2, where we are given w=|u|
There are two cases.
Case 1: w = -u or u is negative and w positive
Here, u>w is false
Case 2: w = u, so u and w are both positive
Here u>w is false, because they are equal.

Hence, this statement alone is sufficient. Hope that helps
_________________
You've got what it takes, but it will take everything you've got
Signature Read More
Intern
Intern
User avatar
B
Joined: 29 May 2017
Posts: 10
Re: Is u>w? 1) u=∣w∣ 2) w=∣u∣  [#permalink]

Show Tags

New post 25 Jul 2017, 01:35
Oh right...yes ..thank u!!

Sent from my X9009 using GMAT Club Forum mobile app
Math Revolution GMAT Instructor
User avatar
V
Joined: 16 Aug 2015
Posts: 8235
GMAT 1: 760 Q51 V42
GPA: 3.82
Re: Is u>w? 1) u=∣w∣ 2) w=∣u∣  [#permalink]

Show Tags

New post 26 Jul 2017, 01:08
==> For con 2), w=|u|≥u for all u is established, so you get w≥ur, which is always no and sufficient.

Therefore, the answer is B.
Answer: B
_________________
MathRevolution: Finish GMAT Quant Section with 10 minutes to spare
The one-and-only World’s First Variable Approach for DS and IVY Approach for PS with ease, speed and accuracy.
"Only $79 for 1 month Online Course"
"Free Resources-30 day online access & Diagnostic Test"
"Unlimited Access to over 120 free video lessons - try it yourself"
Signature Read More
GMAT Club Bot
Re: Is u>w? 1) u=∣w∣ 2) w=∣u∣   [#permalink] 26 Jul 2017, 01:08
Print view
First unread post
Display posts from previous: Sort by

Is u>w? 1) u=∣w∣ 2) w=∣u∣

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

Moderators: chetan2u, Bunuel, VeritasKarishma, gmatbusters

Search for:
PREVIOUS TOPIC
NEXT TOPIC





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