Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack

 It is currently 29 May 2017, 02:01

### 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

# Data Sufficiency

Author Message
Manager
Joined: 01 Jun 2006
Posts: 80
Followers: 1

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

### Show Tags

14 Aug 2006, 12:50
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.

Data Sufficiency

Last edited by rbcola on 29 Jun 2008, 07:48, edited 2 times in total.
Senior Manager
Joined: 08 Jun 2004
Posts: 495
Location: Europe
Followers: 1

Kudos [?]: 75 [0], given: 0

### Show Tags

14 Aug 2006, 23:40
E it is.

1. xyz < 0

x can be = -1, z = 1, y = 4 or z = -1, x = 1, y = 4; insuff

2. xy < 0 insuff

together insuff as well. x can be = 1, y = -4, z = 2.
CEO
Joined: 20 Nov 2005
Posts: 2896
Schools: Completed at SAID BUSINESS SCHOOL, OXFORD - Class of 2008
Followers: 25

Kudos [?]: 290 [0], given: 0

### Show Tags

15 Aug 2006, 00:09
E

St1: Either only one is -ve or all are -ve.
True for x= -2, y = 4, z = 2
False for x = 2, y = 6, z = -1
: INSUFF

St2: x and y are of opposite sign. Clearly INSUFF

Combined:
True for x = -2, y = 4, z = 2
False for x = 4, y = -2, z = 5
INSUFF
_________________

SAID BUSINESS SCHOOL, OXFORD - MBA CLASS OF 2008

15 Aug 2006, 00:09
Display posts from previous: Sort by