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25 Sep 2017, 00:08
Kudos
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
65%
(hard)
Question Stats:
51% (02:08) correct
49%
(01:43)
wrong
based on 137
sessions
History
Date
Time
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Not Attempted Yet
If x/2 + y = z, what is the value of z ?
(1) x + y = 1
(2) x + 2z = 2
(1) x + y = 1
(2) x + 2z = 2
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
25 Sep 2017, 00:36
Kudos
Bookmarks
If x/2 + y = z, what is the value of z ?
=> x+2y = 2z
(1) x + y = 1
=> x+2y=2z => 1+y =2z
Insufficient
(2) x + 2z = 2
=> x+2y = 2z => 2-2z +2y =2z => 4z =2y+2 => 2z= y+1
Insufficient
1+2
We get same information in both. No new information
Answer: E
=> x+2y = 2z
(1) x + y = 1
=> x+2y=2z => 1+y =2z
Insufficient
(2) x + 2z = 2
=> x+2y = 2z => 2-2z +2y =2z => 4z =2y+2 => 2z= y+1
Insufficient
1+2
We get same information in both. No new information
Answer: E
25 Sep 2017, 03:05
Kudos
Bookmarks
Subtract 1 from 2
we get Y = -1 + 2z
and from 2 we know X = 2 - 2Z
Hence putting the value of X and Y in X/2 + Y = Z
We, get Z = 1
hence, C is the correct answer.
Feedback will be appreciated.
Thank you.
we get Y = -1 + 2z
and from 2 we know X = 2 - 2Z
Hence putting the value of X and Y in X/2 + Y = Z
We, get Z = 1
hence, C is the correct answer.
Feedback will be appreciated.
Thank you.
