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12 Jul 2016, 01:40
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
71% (01:25) correct
29%
(01:29)
wrong
based on 298
sessions
History
Date
Time
Result
Not Attempted Yet
If x^2 = y^2, what is the value of x-y?
1) x+y = 8
2) x/y = -1
My doubt is:
I cannot simplify equation 2) as follows:
x/y * y = -1 * y ---> x = -y
... because I would be assuming that y is positive.
Am I wrong?
Thank you.
1) x+y = 8
2) x/y = -1
My doubt is:
I cannot simplify equation 2) as follows:
x/y * y = -1 * y ---> x = -y
... because I would be assuming that y is positive.
Am I wrong?
Thank you.
This Question is Locked Due to Poor Quality
Hi there,
The question you've reached has been archived due to not meeting our community quality standards. No more replies are possible here.
Looking for better-quality questions? Check out the 'Similar Questions' block below
for a list of similar but high-quality questions.
Want to join other relevant Problem Solving discussions? Visit our Data Sufficiency (DS) Forum
for the most recent and top-quality discussions.
Thank you for understanding, and happy exploring!
vivekkumar987
12 Jul 2016, 01:49
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yes , you cant do like that
instead you can do
x/y = -1
x/y +1 =0
so (X+y) / Y =0
which is telling that X+y =0 we don't know the value of X-y
instead you can do
x/y = -1
x/y +1 =0
so (X+y) / Y =0
which is telling that X+y =0 we don't know the value of X-y
EBITDA
If x^2 = y^2, what is the value of x-y?
1) x+y = 8
2) x/y = -1
My doubt is:
I cannot simplify equation 2) as follows:
x/y * y = -1 * y ---> x = -y
... because I would be assuming that y is positive.
Am I wrong?
Thank you.
1) x+y = 8
2) x/y = -1
My doubt is:
I cannot simplify equation 2) as follows:
x/y * y = -1 * y ---> x = -y
... because I would be assuming that y is positive.
Am I wrong?
Thank you.
12 Jul 2016, 02:44
Kudos
Bookmarks
EBITDA
If x^2 = y^2, what is the value of x-y?
1) x+y = 8
2) x/y = -1
My doubt is:
I cannot simplify equation 2) as follows:
x/y * y = -1 * y ---> x = -y
... because I would be assuming that y is positive.
Am I wrong?
Thank you.
1) x+y = 8
2) x/y = -1
My doubt is:
I cannot simplify equation 2) as follows:
x/y * y = -1 * y ---> x = -y
... because I would be assuming that y is positive.
Am I wrong?
Thank you.
This is a poor quality question. I really doubt that it's from GMAT Prep.
From (1) we have that x + y = 8 and from (2) that x + y = 0. The statements contradict each other which cannot happen in proper GMAT question.
Topic locked.
