Find all School-related info fast with the new School-Specific MBA Forum

It is currently 23 Oct 2014, 05:19

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.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Possible value

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
SVP
SVP
avatar
Joined: 04 May 2006
Posts: 1941
Schools: CBS, Kellogg
Followers: 18

Kudos [?]: 322 [0], given: 1

Premium Member
Possible value [#permalink] New post 31 May 2009, 01:40
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
If n is a positive integer, which of the following is a possible value of |56 - 5n|?

7
9
12
15
20


Dont know why the OA is OA
:-D
_________________

Get the best GMAT Prep Resources with GMAT Club Premium Membership

Manager
Manager
avatar
Joined: 12 Apr 2006
Posts: 220
Location: India
Followers: 1

Kudos [?]: 21 [0], given: 17

Re: Possible value [#permalink] New post 31 May 2009, 05:03
As n is a positive integer, 5n would be a multiple of 5 and unit digit will always be either 5 or 0

Now consider the possible scenarios

When the unit digit of 5n is 5,

56 - x5 = y1 (x and y can be anything here, we are just concerned with unit digit)
x5 - 56 = y9

When the unit digit of 5n is 0,

56 - x0 = y6
x0 - 56 = y4

With both these conditions we have only four possibles values of unit digit, that is 1, 9, 6, and 4.

In the given options only 9 satisfy this, hence the answer.
Senior Manager
Senior Manager
User avatar
Joined: 16 Jan 2009
Posts: 362
Concentration: Technology, Marketing
GMAT 1: 700 Q50 V34
GPA: 3
WE: Sales (Telecommunications)
Followers: 2

Kudos [?]: 73 [0], given: 16

Re: Possible value [#permalink] New post 31 May 2009, 15:28
|56 - 5n|=9 for n=13.
looking for difference of 1 makes it easier.
_________________

Lahoosaher

Senior Manager
Senior Manager
avatar
Joined: 16 Apr 2009
Posts: 251
Schools: Ross
Followers: 1

Kudos [?]: 27 [0], given: 10

Re: Possible value [#permalink] New post 31 May 2009, 16:02
Quote:
If n is a positive integer, which of the following is a possible value of |56 - 5n|?

7
9
12
15
20



OA-9
|56- 5n|
5n will end with either 0 or 5
|56-5*10| =|56-50|=6
|56-5*9|=|56-45|=11
|56-5*13|=|56-65|=9
|56-5*14|=|56-70|=14
|56-5*15|=|56-75|=19

Hence 9
_________________

Keep trying no matter how hard it seems, it will get easier.

Intern
Intern
avatar
Joined: 12 May 2009
Posts: 48
Location: Mumbai
Followers: 1

Kudos [?]: 3 [0], given: 1

Re: Possible value [#permalink] New post 01 Jun 2009, 04:23
n will be either 0 or 5 as it is multiplied by 5,

Trying out for options
|56-5*9| = |56-45| = 11
|56-5*10| = 6
|56-5*11| = 1
|56-5*12| = 4
|56-5*13| = 9

OA is B
Re: Possible value   [#permalink] 01 Jun 2009, 04:23
    Similar topics Author Replies Last post
Similar
Topics:
1 Least possible value of n zaarathelab 4 11 Jan 2010, 04:24
least possible value Minotaur 7 24 Nov 2009, 07:06
3 Smallest possible value of x Hussain15 3 26 Oct 2009, 11:38
1 possible value of n ritula 8 25 Jun 2008, 02:52
1 Experts publish their posts in the topic The possibility that the value of stock A will increase is almighty1 17 03 Dec 2005, 22:31
Display posts from previous: Sort by

Possible value

  Question banks Downloads My Bookmarks Reviews Important topics  


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

Powered by phpBB © phpBB Group and phpBB SEO

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®.