14)DS ques
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Source: Beat The GMAT — Data Sufficiency |
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glorydefined
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rsruparelia
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Is X ^ 2>-X?
(1) X <1
(2) X> -1
Statement 1: if X = -1, 1 > 1 not true
if x = -2 , then 4 > 2 which is true so insuffi.
Statement2: X>-1
if x=1, 1 > -1 true
x = -1/2 so 1/4 > 1/2 not true..so insufficient
Taking both statement together,
X<1 and X >-1
x = -1/2 so 1/4 > 1/2
X = 1/2 so 1/4 > -1/2
So not sufficient.
Answer : E
(1) X <1
(2) X> -1
Statement 1: if X = -1, 1 > 1 not true
if x = -2 , then 4 > 2 which is true so insuffi.
Statement2: X>-1
if x=1, 1 > -1 true
x = -1/2 so 1/4 > 1/2 not true..so insufficient
Taking both statement together,
X<1 and X >-1
x = -1/2 so 1/4 > 1/2
X = 1/2 so 1/4 > -1/2
So not sufficient.
Answer : E
