It is currently 17 Mar 2018, 19:21

### 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

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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# ds -distinct integers

Author Message
SVP
Joined: 07 Nov 2007
Posts: 1765
Location: New York

### Show Tags

04 Sep 2008, 13:18
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

### HideShow timer Statistics

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

If a, b, and c are positive distinct integers, is $$(a/b)/c$$ an integer?

c = 2
a = b + c

Statement (1) ALONE is sufficient, but Statement (2) ALONE is not sufficient
Statement (2) ALONE is sufficient, but Statement (1) ALONE is not sufficient
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient
EACH statement ALONE is sufficient
Statements (1) and (2) TOGETHER are NOT sufficient
_________________

Smiling wins more friends than frowning

Manager
Joined: 22 Jul 2008
Posts: 144

### Show Tags

04 Sep 2008, 13:30
St. 2 (a/b)/c = (b+c)/bc = 1/c + 1/b. Since b and c are distinct integers, this sum cannot be an integer.-- sufficient

St. 1 No information about a and b-- Insufficient.
Senior Manager
Joined: 31 Jul 2008
Posts: 282

### Show Tags

04 Sep 2008, 14:30
how about if 1/b= .7 and 1/c=.3 in that case 1/b +1/c = 1 (integer)

ans shud be C

as 1/c = .5 and the other has to be something apart from .5
Manager
Joined: 09 Jul 2007
Posts: 241

### Show Tags

04 Sep 2008, 14:43
I agree with B .

Excellent reasoning KASSALMD.

stallone,

for the expression 1/b +1 / c : for any valuse of b , c > 2 , the expression is < 1 ;

if b=1 and c=2 => 1/b +1 / c = 1.5 ; llly for no integer valuse of b and c the expression will be 1 ( greater integer valuse of 1/b +1 / c is out of question, as that is possible only when b,c=1)

so it can not be an integer.

We do not have any integer b or c which satify 1/b= .7 and 1/c=.3
SVP
Joined: 07 Nov 2007
Posts: 1765
Location: New York

### Show Tags

04 Sep 2008, 20:50
good approach KASSALMD !!

OA is B
_________________

Smiling wins more friends than frowning

Re: ds -distinct integers   [#permalink] 04 Sep 2008, 20:50
Display posts from previous: Sort by