It is currently 21 Sep 2017, 09:21

Happening Now:

Live Chat with Amy Mitson, Sr. Associate Director of Admissions at Tuck Dartmouth


Close

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

In the XY plane , a circle with centre on origin has point

  post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Senior Manager
Senior Manager
avatar
Joined: 02 Dec 2007
Posts: 449

Kudos [?]: 278 [0], given: 6

In the XY plane , a circle with centre on origin has point [#permalink]

Show Tags

New post 24 Nov 2008, 10:05
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

In the XY plane , a circle with centre on origin has point r,s on the circle.
What is the value of r^2 +s^2?

1) the radius is 2

2) the point V2, (-)V2 lies on the circle

Last edited by Nihit on 24 Nov 2008, 15:01, edited 2 times in total.

Kudos [?]: 278 [0], given: 6

Manager
Manager
User avatar
Joined: 05 Jul 2008
Posts: 136

Kudos [?]: 123 [0], given: 40

GMAT 2: 740 Q51 V38
Re: Circle [#permalink]

Show Tags

New post 24 Nov 2008, 10:16
Nihit wrote:
In the XY plane , a circle with centre on origin has points r,s on the circle.
What is the value of r^2 +s^2?

1) the radius is 2

2) the point V2and (-)V2 lies on the circle

(r,s) is on the circle so r2+s2= radius2 (coz the circle has center on origin)

1) r2+s2= radius2 => enough
2) (√2, -√2) is on the circle means (√2)^2+(-√2)^2= Radius ^ 2= r2 +s2

Kudos [?]: 123 [0], given: 40

Manager
Manager
avatar
Joined: 18 Nov 2008
Posts: 116

Kudos [?]: 32 [0], given: 0

Re: Circle [#permalink]

Show Tags

New post 24 Nov 2008, 12:40
D

Each statement gives us a radius, which is sufficient to get r^2+s^2

Kudos [?]: 32 [0], given: 0

Senior Manager
Senior Manager
avatar
Joined: 31 Jul 2008
Posts: 294

Kudos [?]: 54 [0], given: 0

Re: Circle [#permalink]

Show Tags

New post 24 Nov 2008, 12:43
the question says
"points" r,s which to me means 2 different points r and s

hence E for me

btw what is 2 trying to say ???

Kudos [?]: 54 [0], given: 0

Manager
Manager
avatar
Joined: 02 Nov 2008
Posts: 59

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

Re: Circle [#permalink]

Show Tags

New post 24 Nov 2008, 13:46
Stallone good point . Seems like r , s not (r,s) ie not x,y

E for me

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

Intern
Intern
avatar
Joined: 22 Sep 2008
Posts: 11

Kudos [?]: 1 [0], given: 0

Re: Circle [#permalink]

Show Tags

New post 24 Nov 2008, 14:37
What was the OA? I took away that and r and s are two different points. Hence E
_________________

It's not the IMO, it's the OA!!

Kudos [?]: 1 [0], given: 0

Senior Manager
Senior Manager
avatar
Joined: 02 Dec 2007
Posts: 449

Kudos [?]: 278 [0], given: 6

Re: Circle [#permalink]

Show Tags

New post 24 Nov 2008, 14:39
Sorry guys its point and not points !

Kudos [?]: 278 [0], given: 6

Manager
Manager
User avatar
Joined: 05 Jul 2008
Posts: 136

Kudos [?]: 123 [0], given: 40

GMAT 2: 740 Q51 V38
Re: Circle [#permalink]

Show Tags

New post 24 Nov 2008, 18:46
stallone wrote:
the question says
"points" r,s which to me means 2 different points r and s

hence E for me

btw what is 2 trying to say ???


You can't square a point. We use capital letters to symbolize a point.
I think r,s means (r,s).
2 gives you a point which is already on the circle.
D for me.

Kudos [?]: 123 [0], given: 40

Re: Circle   [#permalink] 24 Nov 2008, 18:46
Display posts from previous: Sort by

In the XY plane , a circle with centre on origin has point

  post reply Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

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®.