If xy=-6 what is the value of xy(x+y)? 1) x-y=5 2)xy^2=18 : DS Archive
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 18 Jan 2017, 22:17

### 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
Your Progress

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 xy=-6 what is the value of xy(x+y)? 1) x-y=5 2)xy^2=18

 post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
Senior Manager
Joined: 25 Dec 2003
Posts: 359
Location: India
Followers: 1

Kudos [?]: 37 [0], given: 0

If xy=-6 what is the value of xy(x+y)? 1) x-y=5 2)xy^2=18 [#permalink]

### Show Tags

11 Jul 2004, 08:48
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 xy=-6 what is the value of xy(x+y)?

1) x-y=5
2)xy^2=18

Please explain. This is driving me crazy.
_________________

Giving another SHOT

Senior Manager
Joined: 19 May 2004
Posts: 291
Followers: 1

Kudos [?]: 15 [0], given: 0

### Show Tags

11 Jul 2004, 10:33
B.

1)
x-y = 5 , xy = -6
x=5+y
(5+y)y = -6

Two solutions: (x,y) = (3,-2) or (2,-3)
Insufficient.

2)
x*y^2 = 18
xy=-6
x*y*y = 18
(-6)*y = 18
y=-3
x=2
Sufficient.
Director
Joined: 04 Jul 2004
Posts: 904
Followers: 4

Kudos [?]: 51 [0], given: 0

### Show Tags

12 Jul 2004, 06:26
(B)

1 will give 2 results for a & b
2 will give single result for a & b.
Senior Manager
Joined: 25 Dec 2003
Posts: 359
Location: India
Followers: 1

Kudos [?]: 37 [0], given: 0

### Show Tags

12 Jul 2004, 07:40
B is the correct answer. Thanks guys.
_________________

Giving another SHOT

12 Jul 2004, 07:40
Display posts from previous: Sort by

# If xy=-6 what is the value of xy(x+y)? 1) x-y=5 2)xy^2=18

 post reply Question banks Downloads My Bookmarks Reviews Important topics

 Powered by phpBB © phpBB Group and phpBB SEO Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.