|
|
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.
30 May 2016, 07:26
Kudos
Bookmarks
E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
75%
(hard)
Question Stats:
40% (01:33) correct
60%
(01:12)
wrong
based on 119
sessions
History
Date
Time
Result
Not Attempted Yet
30 May 2016, 08:18
Kudos
Bookmarks
|x| * |y| > x * y when the product of x and y is negative
St1: |x| > x --> x is negative
If y is negative then Is |x| * |y| > x * y ? No
If y is positive then Is |x| * |y| > x * y ? Yes
Not Sufficient
St2: |y| = y --> \(y \geq {0}\)
Insufficient as it depends on the sign of x.
Combining St1 and St2: \(y \geq {0}\) and x is negative
If y > 0 and x is negative then Is |x| * |y| > x * y ? Yes
If y = 0 then Is |x| * |y| > x * y ? No
Not Sufficient
Answer: E
St1: |x| > x --> x is negative
If y is negative then Is |x| * |y| > x * y ? No
If y is positive then Is |x| * |y| > x * y ? Yes
Not Sufficient
St2: |y| = y --> \(y \geq {0}\)
Insufficient as it depends on the sign of x.
Combining St1 and St2: \(y \geq {0}\) and x is negative
If y > 0 and x is negative then Is |x| * |y| > x * y ? Yes
If y = 0 then Is |x| * |y| > x * y ? No
Not Sufficient
Answer: E
30 May 2016, 08:59
Kudos
Bookmarks
chetan2u
Statement 1
\(|x|>x\)
This means that x <0.
But there is no info about y. So not sufficient.
Statement 2
\(|y|=y\)
This means that y>0; or y=0
But there is no info about x. So not sufficient.
Combining the two
x is negative and y is positive or y is zero.
xy will always be negative or zero.
|x|*|y| will always be more than xy when y not equal to zero
|x|*|y| will be equal to xy when y = 0
Hence Not sufficient.
E is the answer.
