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B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
76% (01:21) correct
24%
(02:06)
wrong
based on 94
sessions
History
Date
Time
Result
Not Attempted Yet
What is the value of x?
(1) x^2 – 4 = 20
(2) \(\frac{-2x+8\sqrt{\frac{6}{5}}}{0.8}\)=-x
(1) x^2 – 4 = 20
(2) \(\frac{-2x+8\sqrt{\frac{6}{5}}}{0.8}\)=-x
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
24 Feb 2017, 01:14
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(1) Because it is quadratic equation it has two possible values of X. This one alone is not sufficient.
(2) It this case X is not quadratic and has only one value so that (2) is alone sufficient. Hence right choice is Answer B.
(2) It this case X is not quadratic and has only one value so that (2) is alone sufficient. Hence right choice is Answer B.
