Free Practice Question
DS · Data Sufficiency
sub-505
Algebra
Is zw positive?
(1) z + w^3 = 20
(2) z is positive
Answer Choices
Correct answer marked belowA
Statement (1) ALONE is sufficient
B
Statement (2) ALONE is sufficient
C
BOTH statements TOGETHER are sufficient
D
EACH statement ALONE is sufficient
Statements (1) and (2) TOGETHER are NOT sufficient
Correct
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Explanation
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Sign in to commentWhat this question tests
What it tests
Your ability to manipulate linear and quadratic expressions, substitute unknowns, and solve equations under time pressure.
Common trap
Losing a sign when moving terms across the equals sign, or dividing both sides by a variable that could equal zero.
Details
Difficulty
sub-505
Type
DS
Category