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22 Feb 2021, 01:15
Kudos
Bookmarks
B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
59% (01:10) correct
41%
(01:07)
wrong
based on 140
sessions
History
Date
Time
Result
Not Attempted Yet
What is the value of x?
(1) \(|x| = −x\)
(2) \(|x|^2 = −x^2\)
(1) \(|x| = −x\)
(2) \(|x|^2 = −x^2\)
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
22 Feb 2021, 01:28
Kudos
Bookmarks
Bunuel
Question: x = ?
Statement 1: \(|x| = −x\)
i.e. x is non-positive
i.e.x may be be {0, -1, -2, -3...}
NOT SUFFICIENT
Statement 2: \(|x|^2 = −x^2\)
|x|^2 can NOT be Negative
−x^2 can NOT be Positive
i.e. for \(|x|^2 = −x^2\), x must be zero
i.e. x = 0
SUFFICIENT
Answer: Option B
Statement1:
X <=0
Statement 2:
x^2 + |x|^2 = 0
Only value that satisfies is 0
Hence B.
Posted from my mobile device
X <=0
Statement 2:
x^2 + |x|^2 = 0
Only value that satisfies is 0
Hence B.
Posted from my mobile device
