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23 Nov 2023, 02:30
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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:
15%
(low)
Question Stats:
83% (01:01) correct
17%
(01:10)
wrong
based on 66
sessions
History
Date
Time
Result
Not Attempted Yet
What is the value of integer x ?
(1) \(\sqrt[x]{64} = 4\)
(2) \(x^2 = x + 6\)
(1) \(\sqrt[x]{64} = 4\)
(2) \(x^2 = x + 6\)
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
23 Nov 2023, 03:38
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(1) Only
x=3
Sufficient
(2)Only
x=3 or x=-2
Insufficient
The answer is thus (A)
x=3
Sufficient
(2)Only
x=3 or x=-2
Insufficient
The answer is thus (A)
23 Nov 2023, 09:05
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What is the value of integer x ?
(1) \(\sqrt[x]{64} = 4\)
Raising 4 to the power of 3 gives us 64. Hence only one value is possible.
SUFFICIENT.
(2) \(x^2 = x + 6\)
A polynomial with degree 2 gives us 2 values of variable x.
Since we need only one unique value, this choice is Insufficient.
INSUFFICENT.
Answer A.
(1) \(\sqrt[x]{64} = 4\)
Raising 4 to the power of 3 gives us 64. Hence only one value is possible.
SUFFICIENT.
(2) \(x^2 = x + 6\)
A polynomial with degree 2 gives us 2 values of variable x.
Since we need only one unique value, this choice is Insufficient.
INSUFFICENT.
Answer A.
