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

It is currently 18 Sep 2014, 08:22

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

Is an integer Q divisible by 11? (1) Q is a multiple of 777

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Director
Director
avatar
Joined: 24 Oct 2005
Posts: 577
Location: NYC
Followers: 1

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

GMAT Tests User
Is an integer Q divisible by 11? (1) Q is a multiple of 777 [#permalink] New post 09 Nov 2005, 17:21
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
Is an integer Q divisible by 11?

(1) Q is a multiple of 777
(2) Q is a multiple of 7
_________________

Success is my only option, failure is not -- Eminem

Director
Director
avatar
Joined: 21 Aug 2005
Posts: 795
Followers: 2

Kudos [?]: 5 [0], given: 0

GMAT Tests User
 [#permalink] New post 09 Nov 2005, 18:14
E

A) Insuff.
Q = 777*11 -> Yes
Q = 777 -> No

B) Insuff.
Q = 7 -> No
Q = 77 -> Yes

Together, 777 and 777*11 satisfy both A and B, but
Q = 777 is not divisible by 11
Q = 777*11 is divisible by 11
Senior Manager
Senior Manager
avatar
Joined: 07 Jul 2005
Posts: 405
Followers: 3

Kudos [?]: 11 [0], given: 0

GMAT Tests User
 [#permalink] New post 09 Nov 2005, 21:19
(1) Insufficient

Q/777 gives an integer. However, we still don't know whether Q/11 gives an integer

(2)

Q/7 same as the above reasoning


(1/2)

Q/7 we get an integer N, then

Q/777 = Q/(7*111) = N/111

However, now we don't know whether N is divisible by 11.


I pick E
Senior Manager
Senior Manager
User avatar
Joined: 14 Apr 2005
Posts: 422
Location: India, Chennai
Followers: 1

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

GMAT Tests User
Re: DS [#permalink] New post 09 Nov 2005, 21:50
E.

Let Q be 777, this is multiple of 777 but not divisible by 11. Let Q be 777*11 which is a multiple of 777 and also divisible by 11. Hence stmt 1 is insufficient.

Stmt2: Let Q be 7 which is multiple of 7 but not divisible by 11. Let Q be 77 which is multiple of 7 and divisible by 11. Hence stmt2 by itself is insufficient.

Combing both. Let Q be 777 which is a multiple of 777 and 7 but not divisible by 11. Let Q be 777*11 which is a multiple of 777 and 7 and also divisible by 11. Hence insufficient.

So the answer is E.
Re: DS   [#permalink] 09 Nov 2005, 21:50
    Similar topics Author Replies Last post
Similar
Topics:
Are integers P and Q both multiples of 3? (1) PQ (a amitdgr 4 08 Oct 2008, 22:38
Is \frac{4Q}{11} a positive integer? 1. Q is a prime number arjtryarjtry 5 09 Sep 2008, 17:53
If N is a positive integer, is 10^n - 1 divisible by q? 1. Q bmwhype2 2 21 Nov 2007, 02:04
1 If q is a integer, is q^4 a multiple of 64? (1) q^4 is not a kevincan 17 17 Sep 2006, 03:21
Is q a multiple of 48? (1) q is a multiple of 6 (2) q is a cpcalanoc 1 19 Dec 2004, 18:20
Display posts from previous: Sort by

Is an integer Q divisible by 11? (1) Q is a multiple of 777

  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®.