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11 Dec 2018, 07:32
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D
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:
63% (00:51) correct
37%
(00:50)
wrong
based on 1411
sessions
History
Date
Time
Result
Not Attempted Yet
11 Dec 2018, 08:01
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What is the value of \(x^2 - y^2\)
which simplifies to \((x+y)*(x-y)\)
So it is obvious that statement 2 is sufficient right away.
But statement 1 is tricky to miss in a hurry.
(1) \(x + y = 2x\)
\(y = x\)
or
\(x - y = 0\)
Hence St 2 is also sufficient.
Hence Option (D) is our bet./color]
Best,
Gladi
which simplifies to \((x+y)*(x-y)\)
So it is obvious that statement 2 is sufficient right away.
But statement 1 is tricky to miss in a hurry.
(1) \(x + y = 2x\)
\(y = x\)
or
\(x - y = 0\)
Hence St 2 is also sufficient.
Hence Option (D) is our bet./color]
Best,
Gladi
Bunuel
General Discussion
11 Dec 2018, 08:49
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Statement 1:
x + y = 2x
x = y.
x^2 - y^2
= x^2 - x^2
= 0
Sufficient.
Statement 2:
x^2 - y^ 2
= (x+y) (x - Y)
=0 ( x - y)
= 0
Sufficient.
The best answer is D.
x + y = 2x
x = y.
x^2 - y^2
= x^2 - x^2
= 0
Sufficient.
Statement 2:
x^2 - y^ 2
= (x+y) (x - Y)
=0 ( x - y)
= 0
Sufficient.
The best answer is D.
