Gmat_mission wrote: ↑Thu Aug 20, 2020 9:15 am
Is \(-3x > -3y ?\)
(1) \(x < y\)
(2) \(x > 0\)
Answer:
A
Source: GMAT Prep
Target question: Is -3x > -3y ?
This is a good candidate for rephrasing the target question.
Take
-3x > -3y
Divide both sides of the inequality by -3 to get:
x < y [Since I divided both sides by a NEGATIVE number, I had to reverse the direction of the inequality symbol. See the video below for more information ]
REPHRASED target question: Is x < y?
Statement 1: x < y
Perfect!
The answer to the REPHRASED target question is a resounding
YES!
Since we can answer the
REPHRASED target question with certainty, statement 1 is SUFFICIENT
Statement 2: x > 0
Since no information about the value of y is provided, statement 2 is NOT SUFFICIENT
Answer: A
