|
|
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.
A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
62% (01:54) correct
38%
(02:18)
wrong
based on 330
sessions
History
Date
Time
Result
Not Attempted Yet
If xy≠0, what is the value of (2x + y)/(x - 2y)?
(1) x/(x + y) = 2
(2) x - 2y = 4
M18-08
(1) x/(x + y) = 2
(2) x - 2y = 4
M18-08
Experience GMAT Club Test Questions
Yes, you've landed on a GMAT Club Tests question
Craving more? Unlock our full suite of GMAT Club Tests here
Want to experience more? Get a taste of our tests with our free trial today
Rise to the challenge with GMAT Club Tests. Happy practicing!
14 Jul 2014, 08:58
Kudos
Bookmarks
manojISB
First of all, please format questions properly. The question reads:
If xy≠0, what is the value of (2x + y)/(x - 2y)?
(1) x/(x + y) = 2
(2) x - 2y = 4
As Mike from Magoosh puts it "those parenthesis are not garnish, not extra decorative elements --- they are absolute essential pieces of mathematical equipment, and you are setting yourself up for mistake if you casually ignore their tremendous importance".
If \(xy\neq{0}\), what is the value of \(\frac{2x + y}{x - 2y}\) ?
(1) \(\frac{x}{x + y} = 2\) --> \(x=2x+2y\) --> \(x=-2y\) --> \(\frac{2x + y}{x - 2y}=\frac{-4y+y}{-2y-2y}=\frac{-3y}{-4y}=\frac{3}{4}\). Sufficient.
(2) \(x - 2y = 4\) --> \(x=2y+4\) --> \(\frac{2x + y}{x - 2y}=\frac{2y+4+y}{4}=\frac{3y+4}{4}\) --> we don't know the value of \(y\), hence we can not calculate numerical value of this fraction. Not sufficient.
Answer: A.
Hope it's clear.
23 Aug 2016, 04:19
Kudos
Bookmarks
If xy≠0, what is the value of (2x + y)/(x - 2y)?
(1) x/(x + y) = 2
(2) x - 2y = 4
1.
x =2x+2y
x =-2y
(-4y + y)/(-2y - 2y)
We can get a value
(2) x - 2y = 4
(2x + y)/4 No single value so A
(1) x/(x + y) = 2
(2) x - 2y = 4
1.
x =2x+2y
x =-2y
(-4y + y)/(-2y - 2y)
We can get a value
(2) x - 2y = 4
(2x + y)/4 No single value so A
