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I took this from the Beginners forum, and I'm posting it

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I took this from the Beginners forum, and I'm posting it [#permalink] New post 23 Jun 2005, 01:22
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I took this from the Beginners forum, and I'm posting it here to generate more discussion.

Is sqrt(n) > 100

1. sqrt(n+1) > 100
2. sqrt(n-1) > 100
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 [#permalink] New post 23 Jun 2005, 02:37
A) insufficient, n could be bigger or less than 10000.
B)sufficient
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 [#permalink] New post 23 Jun 2005, 05:39
B.

A is insuff because it boils down to n > 9999 and since the stem doesn’t say n is an integer, we can’t assume n is at least 10000.
B is suff because n > 10001
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 [#permalink] New post 23 Jun 2005, 07:33
One more for B

Question can be restated as is n > 10,000
From Statement 1: n > 9999 - so not sufficient
From statement 2: n > 10,001 - so sufficient
  [#permalink] 23 Jun 2005, 07:33
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