Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 06 Jul 2015, 03:40

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

x and y are integers. x is not equal to 0. Find the value of

Author Message
TAGS:
SVP
Joined: 24 Sep 2005
Posts: 1891
Followers: 12

Kudos [?]: 160 [0], given: 0

x and y are integers. x is not equal to 0. Find the value of [#permalink]  12 Mar 2006, 09:24
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
x and y are integers. x is not equal to 0. Find the value of y, knowing that x+y+xy=0

A. 2
B. 1
C. 0
D. -1
E. -2

Last edited by laxieqv on 12 Mar 2006, 10:14, edited 1 time in total.
SVP
Joined: 14 Dec 2004
Posts: 1706
Followers: 1

Kudos [?]: 59 [0], given: 0

It should be "E" i.e -2

Edit: Not sure, with y = -2, I'm getting x = -2 but x is not equal to y

Other choices,
for y = -1, x = infinity
for y = 0, x = 0 (again x = y)
for y = 1, x = -0.5 but both have to be integers
for y = 2, x = -2/3

Last edited by vivek123 on 12 Mar 2006, 10:08, edited 1 time in total.
SVP
Joined: 24 Sep 2005
Posts: 1891
Followers: 12

Kudos [?]: 160 [0], given: 0

vivek123 wrote:
It should be "E" i.e. -2

Buddy, I guess Tanvi gave you a lot of power!!
SVP
Joined: 14 Dec 2004
Posts: 1706
Followers: 1

Kudos [?]: 59 [0], given: 0

laxieqv wrote:
vivek123 wrote:
It should be "E" i.e. -2

Buddy, I guess Tanvi gave you a lot of power!!

Laxie,
Buddy, can you just check above? the edit portion? am I missing something?

Well, Tanvi is cool, enjoying She has learnt so many things, she tries to mimic what we talk or do. It's fun watching her
SVP
Joined: 24 Sep 2005
Posts: 1891
Followers: 12

Kudos [?]: 160 [0], given: 0

hik, sorry buddy, i just editted. It's " x is not equal to 0"

buddy, you know children are extremely sensitive to learning around the age of Tanvi ....they will learn a lot from their parents' emotional expressions. Just keep showing her all your happiness and smiling so that she'll be an optimistic person later!! ^_^
SVP
Joined: 14 Dec 2004
Posts: 1706
Followers: 1

Kudos [?]: 59 [0], given: 0

ok, then it should "E" i.e. -2

Yeah, you're right. We have made sure that there is healthy environment around her!
SVP
Joined: 24 Sep 2005
Posts: 1891
Followers: 12

Kudos [?]: 160 [0], given: 0

Re: DS know x, find y [#permalink]  12 Mar 2006, 21:10
laxieqv wrote:
x and y are integers. x is not equal to 0. Find the value of y, knowing that x+y+xy=0

A. 2
B. 1
C. 0
D. -1
E. -2

x+y+xy = 0 --> x(y+1) +y = 0 ---> x(y+1) + (y+1) -1 =0
---> (y+1) (x+1) =1

Because x and y are integers ---> (y+1) and (x+1) must be factors of 1
We have two cases:
(y+1) = 1 and (x+1) =1
OR ( y+1) =-1 and (x+1) = -1
But the first case yields x= 0 ---> eliminate
The second case stands ---> y+1= -1 ---> y=-2

OA is E.
Good job, everyone~!!
Senior Manager
Joined: 22 Nov 2005
Posts: 478
Followers: 2

Kudos [?]: 3 [0], given: 0

Re: DS know x, find y [#permalink]  12 Mar 2006, 21:20
laxieqv wrote:
x and y are integers. x is not equal to 0. Find the value of y, knowing that x+y+xy=0

A. 2
B. 1
C. 0
D. -1
E. -2

x+ y + xy = 0

===> 1/x + 1/y = -1
put value of Y from the given choices and try to find out X.

from the give choices

Only E satisfy the condition that both x and y should be an Integer.
Re: DS know x, find y   [#permalink] 12 Mar 2006, 21:20
Similar topics Replies Last post
Similar
Topics:
5 If x and y are integers and xy ≠ 0, what is the value of x/y ? 8 24 Mar 2015, 03:37
6 If x and y are integers and xy does not equal 0, is xy < 0? 3 15 Oct 2014, 15:49
13 Is the value of x equal to the value of y? 10 24 May 2013, 16:32
If y is more or equal to 0, what is the value of x? 1) 3 02 Dec 2006, 05:03
Display posts from previous: Sort by