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

 It is currently 02 Jul 2015, 15:53

### 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

Author Message
TAGS:
SVP
Joined: 16 Oct 2003
Posts: 1813
Followers: 4

Kudos [?]: 56 [0], given: 0

DS [#permalink]  23 Jun 2004, 19:53
00:00

Difficulty:

(N/A)

Question Stats:

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

d23.JPG [ 21.5 KiB | Viewed 869 times ]

Manager
Joined: 07 May 2004
Posts: 183
Location: Ukraine, Russia(part-time)
Followers: 2

Kudos [?]: 9 [0], given: 0

Re: DS [#permalink]  24 Jun 2004, 06:49
Bhai wrote:

1 is not suff., since its only implication is that -1 and 1 belong to S.

2 is suff., since -2 and 2 belong to S => -4 belongs to S.
Senior Manager
Joined: 07 Oct 2003
Posts: 358
Location: Manhattan
Followers: 2

Kudos [?]: 9 [0], given: 0

clearly B (same reasoning as Emmanuel's)
SVP
Joined: 16 Oct 2003
Posts: 1813
Followers: 4

Kudos [?]: 56 [0], given: 0

Re: DS [#permalink]  24 Jun 2004, 16:32
Emmanuel wrote:
Bhai wrote:

1 is not suff., since its only implication is that -1 and 1 belong to S.

2 is suff., since -2 and 2 belong to S => -4 belongs to S.

Can you elaborate more on your point. I think I got it but not its not connecting..
Director
Joined: 13 Nov 2003
Posts: 971
Location: Florida
Followers: 1

Kudos [?]: 35 [0], given: 0

B..

2 in S, this -2 is in S
a=2, b=-2 ---> a*b in S, or -4 in S.
Manager
Joined: 08 Jun 2004
Posts: 245
Location: INDIA
Followers: 2

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

my anz wud be

E ...
A) not suffiencient... since we know that 1 , -1 ARE THR...

B) not suffcient ... 2 and -2 are there....

combining we do not anything other than 1 -1 2 and -2...

also how can we assume that -a = b batli a=2 acc'' second statmt'' and if a is there we alsp have -a= -2 and if a is there we get b there... true but how and why do we have to assume that b=-a

and how can we multiply 2 and -2 its like -a* a and not ab...
some one help me ...

Have fun
_________________

the whole worldmakes way for the man who knows wer he's going... good luck

Similar topics Replies Last post
Similar
Topics:
DS- 3 01 Sep 2006, 10:58
DS 4 21 Aug 2006, 08:18
DS 6 21 Aug 2006, 07:33
ds 6 13 Nov 2005, 17:37
DS 1 21 Oct 2005, 18:42
Display posts from previous: Sort by