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

It is currently 23 Jan 2019, 03:34

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 January
PrevNext
SuMoTuWeThFrSa
303112345
6789101112
13141516171819
20212223242526
272829303112
Open Detailed Calendar
  • Key Strategies to Master GMAT SC

     January 26, 2019

     January 26, 2019

     07:00 AM PST

     09:00 AM PST

    Attend this webinar to learn how to leverage Meaning and Logic to solve the most challenging Sentence Correction Questions.
  • Free GMAT Number Properties Webinar

     January 27, 2019

     January 27, 2019

     07:00 AM PST

     09:00 AM PST

    Attend this webinar to learn a structured approach to solve 700+ Number Properties question in less than 2 minutes.

If a < 0, is |a| - a - |2a| = ?

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

Hide Tags

 
Manager
Manager
avatar
S
Joined: 06 Jul 2014
Posts: 94
Location: India
Concentration: Finance, Entrepreneurship
GMAT 1: 660 Q48 V32
GMAT ToolKit User Reviews Badge
If a < 0, is |a| - a - |2a| = ?  [#permalink]

Show Tags

New post 16 Aug 2017, 10:46
2
3
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

90% (00:50) correct 10% (01:28) wrong based on 275 sessions

HideShow timer Statistics

If a < 0, is |a| - a - |2a| = ?

A. a
B. -1
C. 0
D. 1
E. –a
Math Expert
User avatar
V
Joined: 02 Aug 2009
Posts: 7212
Re: If a < 0, is |a| - a - |2a| = ?  [#permalink]

Show Tags

New post 16 Aug 2017, 11:08
1
Bounce1987 wrote:
If a<0, is |a|-a-|2a|=?

A.a B. -1 C.0 D.1 E. –a



Hi..
Let a=-x, where x is positive..
So |-x|-(-x)-|2*-x|=|x|+x-|-2x|=x+x-2x=0

Or take a as any value say -1...
So |a|-a-|2a|=|-1|-(-1)-|2*-1|=1+1-2=0

C
_________________

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


GMAT online Tutor

Intern
Intern
avatar
Joined: 25 Jun 2017
Posts: 3
Location: India
Schools: Stern '18
GMAT 1: 360 Q30 V9
GPA: 2.3
Re: If a < 0, is |a| - a - |2a| = ?  [#permalink]

Show Tags

New post 01 Oct 2017, 09:04
SUPPOSE a= - 2
|-2|- (-2) - |2 (-2)|
2+2-4=0.
hence ans is 0.
VP
VP
User avatar
V
Status: It's near - I can see.
Joined: 13 Apr 2013
Posts: 1365
Location: India
Concentration: International Business, Operations
GMAT 1: 480 Q38 V22
GPA: 3.01
WE: Engineering (Consulting)
Premium Member Reviews Badge
Re: If a < 0, is |a| - a - |2a| = ?  [#permalink]

Show Tags

New post 21 Mar 2018, 22:13
Bounce1987 wrote:
If a < 0, is |a| - a - |2a| = ?

A. a
B. -1
C. 0
D. 1
E. –a


If a < 0, then |a| = -a

Therefore, we have

-a -a - (-2a)

-2a + 2a = 0

(C)
_________________

"Do not watch clock; Do what it does. KEEP GOING."

GMAT Club Bot
Re: If a < 0, is |a| - a - |2a| = ? &nbs [#permalink] 21 Mar 2018, 22:13
Display posts from previous: Sort by

If a < 0, is |a| - a - |2a| = ?

  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®.