Events & Promotions
|
|
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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Oct 0107:00 AM BST
-08:00 AM GMT
Welcome to the GMAT Club's Free Interview Prep Event for Top MBA Programs! Buy tickets - Virtual series that’s all set to equip you to -excel in your MBA interviews.
17 Jan 2019, 22:10
Kudos
Bookmarks
D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
58% (00:58) correct
42%
(01:00)
wrong
based on 142
sessions
History
Date
Time
Result
Not Attempted Yet
X and Y are distinct non negative real numbers. What is the sum (X+Y)?
(1) (X^2 - Y^2)/(X-Y) = 6
(2) (X+Y)^2 = 36
(1) (X^2 - Y^2)/(X-Y) = 6
(2) (X+Y)^2 = 36
Pure algebraic questions like this one are no longer part of the GMAT Data Sufficiency syllabus.
For relevant Data Sufficiency questions, please check the Data Sufficiency forum:
Data Sufficiency Forum
Data Sufficiency Forum
17 Jan 2019, 22:20
Kudos
Bookmarks
From statement 1:
\(\frac{x^2-y^2}{x-y} = 6\)
\(\frac{(x+y)(x-y)}{x-y} = 6\)
\(x+y = 6\)
Sufficient.
From statement 2:
\((x+y)^2 = 36\)
x+y = +6 or -6
Insufficient.
A is the answer.
\(\frac{x^2-y^2}{x-y} = 6\)
\(\frac{(x+y)(x-y)}{x-y} = 6\)
\(x+y = 6\)
Sufficient.
From statement 2:
\((x+y)^2 = 36\)
x+y = +6 or -6
Insufficient.
A is the answer.
17 Jan 2019, 23:41
Kudos
Bookmarks
Afc0892
Answer should be D if you account for the fact that x and y are non negative, therefore x+y=-6 is not a viable option.
Posted from my mobile device
