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nehatandon
- Junior | Next Rank: 30 Posts
- Posts: 13
- Joined: Fri Jan 07, 2011 9:17 pm
Statement 1: (t/3) is not an integer.nehatandon wrote:If t is an integer, is t odd?
(1)t/3 is not an integer.
(2)t-1/3 is not an integer.
Implies t is not divisible by 3. This doesn't help us to conclude whether t is even or odd. Consider,
- 1. t = 5 => Odd
2. t = 8 => Even
Statement 2: (t - 1)/3 is not an integer.
Implies (t - 1) is not divisible by 3. This also doesn't help us to conclude whether t is even or odd. Consider the same examples as above.
Not sufficient.
1 & 2 Together: t and (t - 1) both are not divisible by 3. Hence (t + 1) must be divisible by 3. But this also does not help us to conclude whether t is even or odd. Consider the same examples as above.
Not sufficient.
The correct answer is E.
