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24 Jun 2020, 02:27
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
51% (01:16) correct
49%
(01:55)
wrong
based on 169
sessions
History
Date
Time
Result
Not Attempted Yet
What is the value of y ?
(1) |x| ≤ y ≤ −|x|
(2) |y| ≥ x ≥ −|y|
Are You Up For the Challenge: 700 Level Questions
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
24 Jun 2020, 02:46
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What is the value of y ?
(1) |x| ≤ y ≤ −|x|
'+' ≤ y ≤ '−'
This is only possible when both |x| and -|x| equal 'zero'.
0 ≤ y ≤ −0 i.e. 0 ≤ y ≤ 0
Hence y = 0
SUFFICIENT.
(2) |y| ≥ x ≥ −|y|
|2| ≥ x ≥ −|2| i.e. 2 ≥ x ≥ −2
OR
|3| ≥ x ≥ −|3| i.e. 3 ≥ x ≥ −3
Not a unique value of y is available.
INSUFFICIENT.
Answer A.
(1) |x| ≤ y ≤ −|x|
'+' ≤ y ≤ '−'
This is only possible when both |x| and -|x| equal 'zero'.
0 ≤ y ≤ −0 i.e. 0 ≤ y ≤ 0
Hence y = 0
SUFFICIENT.
(2) |y| ≥ x ≥ −|y|
|2| ≥ x ≥ −|2| i.e. 2 ≥ x ≥ −2
OR
|3| ≥ x ≥ −|3| i.e. 3 ≥ x ≥ −3
Not a unique value of y is available.
INSUFFICIENT.
Answer A.
MayankSingh
Joined: 08 Jan 2018
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Given Kudos: 249
Location: India
Concentration: Operations, General Management
Schools: McDonough '25 (A) Marshall '25 (D) Tepper '25 (WA$) Kenan-Flagler '25 (A) ISB '25 (WL) IIMC '25 (A) Owen '26 (A$$$$)
GMAT 1: 640 Q48 V27
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Schools: McDonough '25 (A) Marshall '25 (D) Tepper '25 (WA$) Kenan-Flagler '25 (A) ISB '25 (WL) IIMC '25 (A) Owen '26 (A$$$$)
GMAT 2: 730 Q51 V38
Posts: 289
24 Jun 2020, 03:24
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IMO A
(1) |x| ≤ y ≤ −|x|
For any Value of x other than zero, the above inequality will not make sense.
eg. x = 3
From Inequality, y>3 & y< -5 , So no such values possible for y
So, x= 0. y=0
Sufficient
(2) |y| ≥ x ≥ −|y|
Here y can have any value, correspondingly x can take multiple values.
Not Sufficient.
(1) |x| ≤ y ≤ −|x|
For any Value of x other than zero, the above inequality will not make sense.
eg. x = 3
From Inequality, y>3 & y< -5 , So no such values possible for y
So, x= 0. y=0
Sufficient
(2) |y| ≥ x ≥ −|y|
Here y can have any value, correspondingly x can take multiple values.
Not Sufficient.
