If x and y are positive integers and y = square root (9-x) , : DS Archive
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 18 Jan 2017, 07:43

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 x and y are positive integers and y = square root (9-x) ,

 post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
Intern
Joined: 09 Dec 2004
Posts: 6
Followers: 0

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

If x and y are positive integers and y = square root (9-x) , [#permalink]

Show Tags

11 Feb 2005, 14:05
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 x and y are positive integers and y = square root (9-x) , what is the value of y?

(1) x < 8
(2) y > 1
Manager
Joined: 01 Jan 2005
Posts: 167
Location: NJ
Followers: 1

Kudos [?]: 4 [0], given: 0

Show Tags

11 Feb 2005, 14:21
A.

I) The only poss values are x=5 which makes y=+2 and -2 but since x is positive y=2. Sufficient.

II) The poss values are

x=5, y=2
x=8, y=1
Thus, Insufficient.
Intern
Joined: 09 Dec 2004
Posts: 6
Followers: 0

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

Show Tags

11 Feb 2005, 14:22
HongHu , can you explain how you got D?...isn't 0 considered a positive integer?
Director
Joined: 07 Jun 2004
Posts: 612
Location: PA
Followers: 5

Kudos [?]: 706 [0], given: 22

Show Tags

11 Feb 2005, 14:26
I have to go with D on this one as

in statement 1 y can be 9-5 = 4 only y = 2 possible suff

II) is suff as Y can be again only 2 as 9-9 = 0 and thats not positive integer so x has to be less than 9 but > 0
Director
Joined: 07 Jun 2004
Posts: 612
Location: PA
Followers: 5

Kudos [?]: 706 [0], given: 22

Show Tags

11 Feb 2005, 14:29
Vijo 0 is not a Positve number its only a integer with no + / - sign with it
SVP
Joined: 03 Jan 2005
Posts: 2243
Followers: 16

Kudos [?]: 324 [0], given: 0

Show Tags

11 Feb 2005, 15:43
0 is not positive, nor negative.

X<8 means it cannot be equal to 8.
Y>1 means it cannot be equal to 1.
Current Student
Joined: 28 Dec 2004
Posts: 3384
Location: New York City
Schools: Wharton'11 HBS'12
Followers: 15

Kudos [?]: 282 [0], given: 2

Show Tags

11 Feb 2005, 19:35
D as well

since we have positive integers only....y = sqrt(perfect square)...since 0 is not a positive integer....only option is y=2

both statements are sufficient!
VP
Joined: 25 Nov 2004
Posts: 1493
Followers: 7

Kudos [?]: 98 [0], given: 0

Re: DS: sqrt(9-x) [#permalink]

Show Tags

11 Feb 2005, 22:37
maheshw wrote:
If x and y are positive integers and y = square root (9-x) , what is the value of y?

(1) x < 8
(2) y > 1

one more good question.
go with D.
Manager
Joined: 11 Jan 2005
Posts: 101
Followers: 1

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

Show Tags

15 Feb 2005, 18:35
one more for D

bytw, I think we just need to know that y is not 1 to find the solution
15 Feb 2005, 18:35
Display posts from previous: Sort by

If x and y are positive integers and y = square root (9-x) ,

 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®.