GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 05 Dec 2019, 12:13

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

For integers a, b, x, and y, ab + yb = xy - yb. If a - b = 0 and x + y

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Manager
Manager
avatar
S
Joined: 18 Jul 2017
Posts: 59
CAT Tests
For integers a, b, x, and y, ab + yb = xy - yb. If a - b = 0 and x + y  [#permalink]

Show Tags

New post 14 Mar 2018, 19:07
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

100% (00:49) correct 0% (00:00) wrong based on 7 sessions

HideShow timer Statistics

For integers a, b, x, and y, ab + yb = xy - yb. If a - b = 0 and x + y = 0, what is the value of x?

(1) a = 3

(2) y = -3

1)Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked
2)Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked
3)Both statements (1) and (2) TOGETHER are sufficient to answer the question asked; but NEITHER statement ALONE is sufficient
4)EACH statement ALONE is sufficient to answer the question asked
5)Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data specific to the problem are needed

Kudos is appreciated.

--== Message from the GMAT Club Team ==--

THERE IS LIKELY A BETTER DISCUSSION OF THIS EXACT QUESTION.
This discussion does not meet community quality standards. It has been retired.


If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.
RC Moderator
User avatar
V
Joined: 24 Aug 2016
Posts: 781
GMAT 1: 540 Q49 V16
GMAT 2: 680 Q49 V33
GMAT ToolKit User Reviews Badge CAT Tests
Re: For integers a, b, x, and y, ab + yb = xy - yb. If a - b = 0 and x + y  [#permalink]

Show Tags

New post 14 Mar 2018, 20:53
if a-b=0 => a=b
similarly y=-x
Now simplifying ,ab + yb = xy - yb , => (a-x)^2=0 =>a=x
1. a=3 =>x=3 ---------->S
2. y=-3 =>x=3 --------->S
Thus D.
_________________
Please let me know if I am going in wrong direction.
Thanks in appreciation.
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 59561
Re: For integers a, b, x, and y, ab + yb = xy - yb. If a - b = 0 and x + y  [#permalink]

Show Tags

New post 14 Mar 2018, 20:54
wishalsp333 wrote:
For integers a, b, x, and y, ab + yb = xy - yb. If a - b = 0 and x + y = 0, what is the value of x?

(1) a = 3

(2) y = -3

1)Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked
2)Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked
3)Both statements (1) and (2) TOGETHER are sufficient to answer the question asked; but NEITHER statement ALONE is sufficient
4)EACH statement ALONE is sufficient to answer the question asked
5)Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data specific to the problem are needed

Kudos is appreciated.


Discussed here: for-integers-a-b-x-and-y-ab-yb-xy-yb-if-a-b-0-and-x-y-192602.html Hope it helps.

Please search before posting and provide he OA along with the question.

--== Message from the GMAT Club Team ==--

THERE IS LIKELY A BETTER DISCUSSION OF THIS EXACT QUESTION.
This discussion does not meet community quality standards. It has been retired.


If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.
GMAT Club Bot
Re: For integers a, b, x, and y, ab + yb = xy - yb. If a - b = 0 and x + y   [#permalink] 14 Mar 2018, 20:54
Display posts from previous: Sort by

For integers a, b, x, and y, ab + yb = xy - yb. If a - b = 0 and x + y

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  





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