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14 Apr 2023, 07:45
Kudos
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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:
45%
(medium)
Question Stats:
48% (01:23) correct
52%
(01:51)
wrong
based on 31
sessions
History
Date
Time
Result
Not Attempted Yet
If \(w^2x^3y^4z^5<0\), is \(xyz>0\)?
(1) \(x<0\)
(2) \(y<0\)
(1) \(x<0\)
(2) \(y<0\)
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
14 Apr 2023, 10:31
Kudos
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Bunuel
Given : \(w^2x^3y^4z^5<0\)
\(\text{positive} * x^3 * \text{positive} * z^5 < 0\)
Hence, we can conclude that \(x * z < 0\)
Question: \(xyz>0\)
As the product of x and z is less than 0, the product of x, y, and z will be greater then 0 only if y is negative.
Hence, our target question becomes "Is y < 0 " ?
Statement 1: Provides no information on y. Hence, we can eliminate A, and D as that statement is not sufficient.
Statement 2: Exactly what we need.
The statement is sufficient.
Option B
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