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26 May 2021, 07:00
Kudos
Bookmarks
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:
75% (00:51) correct
25%
(00:55)
wrong
based on 85
sessions
History
Date
Time
Result
Not Attempted Yet
Is x > y ?
(1) xa > ya
(2) x − a > y − a
(1) xa > ya
(2) x − a > y − a
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
26 May 2021, 08:02
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Is x > y ?
(1) xa > ya
xa-ya>0……….(x-y)a>0
Depends on the sign of a as +*+>0 or -*->0
If a>0, then x-y>0 or x>y.....2*1>1*1
If a<0, then x-y<0 or x<y.....2*-1>3*-1
(2) x − a > y − a
Add a to both sides to get x>y.
Sufficient
B
(1) xa > ya
xa-ya>0……….(x-y)a>0
Depends on the sign of a as +*+>0 or -*->0
If a>0, then x-y>0 or x>y.....2*1>1*1
If a<0, then x-y<0 or x<y.....2*-1>3*-1
(2) x − a > y − a
Add a to both sides to get x>y.
Sufficient
B
