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17 Sep 2019, 10:18
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
95%
(hard)
Question Stats:
13% (02:02) correct
88%
(02:08)
wrong
based on 48
sessions
History
Date
Time
Result
Not Attempted Yet
Is \(x|y|>y^2\)?
1) \(\frac{1}{y} + x^2 >3\)
2) \(x > |y|\)
1) \(\frac{1}{y} + x^2 >3\)
2) \(x > |y|\)
GMATbuster's Collection
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
Updated on: 18 Sep 2019, 02:50
Originally posted by Archit3110 on 17 Sep 2019, 10:43.
Last edited by Archit3110 on 18 Sep 2019, 02:50, edited 3 times in total.
Last edited by Archit3110 on 18 Sep 2019, 02:50, edited 3 times in total.
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gmatbusters
#1
\(\frac{1}{y} + x^2 >3\)
x^2y>3y-1
if x= -1 , y=-2
-2>-7 but \(x|y|>y^2\) NO
if x=5 and y=5
then x^2y>3y-1 ; 5^3>14 ; yes but \(x|y|>y^2\) ; we get NO since 25=25
if x=10 and y=5
500>14 ; and 50>25 YES
insufficient
#2
\(x >l yl\)
for any value of y be it + or -ve x>y so
no unique value can we get to determine \(x|y|>y^2\) \(x|y|>y^2\); sufficient
but for y=0 we get no value so insufficient
from 1&2 x>y sufficient
IMO C
17 Sep 2019, 11:15
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Answer is E
1)is not sufficient as we have x^2 which is clearly irrelevant
2)is not sufficient as y<x is not enough to prove the expression,we need to have y-<x as well
Both together is insufficient
Posted from my mobile device
1)is not sufficient as we have x^2 which is clearly irrelevant
2)is not sufficient as y<x is not enough to prove the expression,we need to have y-<x as well
Both together is insufficient
Posted from my mobile device
