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

 It is currently 27 Mar 2015, 16:38

### 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

# Strange Formula

Author Message
TAGS:
Manager
Joined: 29 May 2008
Posts: 113
Followers: 1

Kudos [?]: 32 [0], given: 0

Strange Formula [#permalink]  07 Sep 2009, 05:48
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 3 sessions
if r@s = rs + r + s, the for what valued of s is r@s equal to r for all values of r?

A) -1
B) 0
C) 1
D) 1/(r+1)
E) r
Intern
Joined: 01 May 2009
Posts: 23
Followers: 0

Kudos [?]: 0 [0], given: 2

Re: Strange Formula [#permalink]  07 Sep 2009, 06:13
would go for B, pls post OA
Manager
Joined: 29 May 2008
Posts: 113
Followers: 1

Kudos [?]: 32 [0], given: 0

Re: Strange Formula [#permalink]  07 Sep 2009, 07:02

That would help a lot thanks
Senior Manager
Joined: 18 Aug 2009
Posts: 331
Followers: 8

Kudos [?]: 191 [0], given: 13

Re: Strange Formula [#permalink]  07 Sep 2009, 07:49
TheRob wrote:

That would help a lot thanks

rs + r + s = r
rs + s = 0
s(r+1) = 0
So s must be 0
Re: Strange Formula   [#permalink] 07 Sep 2009, 07:49
Similar topics Replies Last post
Similar
Topics:
Strange Profile 2 28 May 2011, 21:01
11 Strange one ! 8 11 Aug 2010, 22:25
formula 1 31 Jul 2009, 07:28
STRANGE BUT TRUE!!! 6 21 Dec 2006, 17:09
Strange English 7 06 Apr 2005, 23:16
Display posts from previous: Sort by