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viveksavita
- Newbie | Next Rank: 10 Posts
- Posts: 2
- Joined: Sun Apr 27, 2014 11:27 pm
Statement 1: √n > 9viveksavita wrote:if n is positive integer, is n is equal to 100?
1) square root(n) >9
2) square root (n) <11
Squaring both sides, we get:
n > 81.
Since n can be ANY INTEGER greater than 81, INSUFFICIENT.
Statement 2: √n < 11
Squaring both sides, we get:
n < 121.
Since n can be ANY POSITIVE INTEGER less than 121, INSUFFICIENT.
Statements combined:
Since n can be ANY INTEGER between 81 and 121, INSUFFICIENT.
The correct answer is E.
