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shivshankar054
- Junior | Next Rank: 30 Posts
- Posts: 12
- Joined: Mon Dec 03, 2012 10:02 am
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OG Quant Review Problem
Source: Beat The GMAT — Data Sufficiency |
oki with ST 1 we know that -1< X < 0 so as per the definition of that function i will get the X as 0
now with st 2 i have -0.5 < x < 0.5 . now as per the definition of that function i may have X as 0 or X as 1
hence A
now with st 2 i have -0.5 < x < 0.5 . now as per the definition of that function i may have X as 0 or X as 1
hence A
Statement 1:shivshankar054 wrote:For all z, [z] denotes the least integer greater than or equal to z. Is [x] = 0?
(1) -1 < x < -0.1
(2) [x + 0.5] = 1
If -1 < x < -0.1, 0 is the least integer, which is greater than or equal to x
Sufficient
Statement 2: implies 0 < x + 0.5 ≤ 1 ---> -0.5 < x ≤ 0.5
If x = -0.4, [x] is 0.
If x = +0.4, [x] is 1
Not sufficient.
[spoiler]
The correct answer is A.[/spoiler]
Anju Agarwal
Quant Expert, Gurome
Backup Methods : General guide on plugging, estimation etc.
Wavy Curve Method : Solving complex inequalities in a matter of seconds.
§ GMAT with Gurome § Admissions with Gurome § Career Advising with Gurome §
Quant Expert, Gurome
Backup Methods : General guide on plugging, estimation etc.
Wavy Curve Method : Solving complex inequalities in a matter of seconds.
§ GMAT with Gurome § Admissions with Gurome § Career Advising with Gurome §
