If xyz>0, is x(y)^(2z)^3>0 1) y>0 2) x>0 : DS Archive
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 24 Jan 2017, 14:51

### 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

# If xyz>0, is x(y)^(2z)^3>0 1) y>0 2) x>0

Author Message
VP
Joined: 29 Dec 2005
Posts: 1348
Followers: 10

Kudos [?]: 60 [0], given: 0

If xyz>0, is x(y)^(2z)^3>0 1) y>0 2) x>0 [#permalink]

### Show Tags

27 Apr 2006, 19:21
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 xyz>0, is x(y)^(2z)^3>0

1) y>0
2) x>0
Manager
Joined: 21 Mar 2006
Posts: 89
Followers: 1

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

### Show Tags

27 Apr 2006, 19:31
I would say B, not totally certain though.

wouldn't x(y)^(2z)^3>0 = x(y)^6z>0. Therefore y will always be positive. It is X that we are uncertain about. Since B tells us that X is positive it answers yes to the equation.
27 Apr 2006, 19:31
Display posts from previous: Sort by