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19 Sep 2022, 03:59
Kudos
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C
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Difficulty:
5%
(low)
Question Stats:
92% (00:29) correct
8%
(00:29)
wrong
based on 126
sessions
History
Date
Time
Result
Not Attempted Yet
If x, y, and z are positive, what is the value of x ?
(1) x + y = z + y
(2) z – y = 4 – y
(1) x + y = z + y
(2) z – y = 4 – y
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
19 Sep 2022, 21:02
Kudos
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Asked: If x, y, and z are positive, what is the value of x ?
(1) x + y = z + y
x = z
Since z is unknown
NOT SUFFICIENT
(2) z – y = 4 – y
z = 4
Since there is no relation between x & z.
NOT SUFFICIENT
(1) + (2)
(1) x + y = z + y
x = z
(2) z – y = 4 – y
z = 4
x = z = 4
SUFFICIENT
IMO C
(1) x + y = z + y
x = z
Since z is unknown
NOT SUFFICIENT
(2) z – y = 4 – y
z = 4
Since there is no relation between x & z.
NOT SUFFICIENT
(1) + (2)
(1) x + y = z + y
x = z
(2) z – y = 4 – y
z = 4
x = z = 4
SUFFICIENT
IMO C
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