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

It is currently 25 Sep 2018, 21:56

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

For positive integer n, is 12 a factor of n?

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

Hide Tags

Math Revolution GMAT Instructor
User avatar
V
Joined: 16 Aug 2015
Posts: 6242
GMAT 1: 760 Q51 V42
GPA: 3.82
Premium Member
For positive integer n, is 12 a factor of n?  [#permalink]

Show Tags

New post 11 May 2017, 01:24
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

77% (01:07) correct 23% (01:17) wrong based on 104 sessions

HideShow timer Statistics

For positive integer n, is 12 a factor of n?

1) n is a factor of 48
2) n is a multiple of 24

_________________

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 $99 for 3 month Online Course"
"Free Resources-30 day online access & Diagnostic Test"
"Unlimited Access to over 120 free video lessons - try it yourself"

Senior CR Moderator
User avatar
V
Status: Long way to go!
Joined: 10 Oct 2016
Posts: 1385
Location: Viet Nam
GMAT ToolKit User Premium Member
Re: For positive integer n, is 12 a factor of n?  [#permalink]

Show Tags

New post 11 May 2017, 01:38
MathRevolution wrote:
For positive integer n, is 12 a factor of n?

1) n is a factor of 48
2) n is a multiple of 24


(1) n is a factor of 48.

If n=1 then 12 is not a factor of n.
If n=12 then 12 is a factor of n.

Insufficient.

(2) 24 is divisible by 12. Hence, n is divisible by 24 also divisible by 12. Sufficient.

The answer is B.
_________________

Actual LSAT CR bank by Broall

How to solve quadratic equations - Factor quadratic equations
Factor table with sign: The useful tool to solve polynomial inequalities
Applying AM-GM inequality into finding extreme/absolute value

New Error Log with Timer

Math Revolution GMAT Instructor
User avatar
V
Joined: 16 Aug 2015
Posts: 6242
GMAT 1: 760 Q51 V42
GPA: 3.82
Premium Member
Re: For positive integer n, is 12 a factor of n?  [#permalink]

Show Tags

New post 14 May 2017, 18:31
==> In the original condition, there is 1 variable. In order to match the number of variables to the number of equations, there must be 1 equation. Since there is 1 for con 1) and 1 for con 2), D is most likely to be the answer. For con 1), n=2 no, n=12 yes, hence it is not sufficient.
For con 2), n=24t(t=any positive integer), hence it is always yes 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 $99 for 3 month Online Course"
"Free Resources-30 day online access & Diagnostic Test"
"Unlimited Access to over 120 free video lessons - try it yourself"

GMAT Club Bot
Re: For positive integer n, is 12 a factor of n? &nbs [#permalink] 14 May 2017, 18:31
Display posts from previous: Sort by

For positive integer n, is 12 a factor of n?

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

Events & Promotions

PREV
NEXT


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®.