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

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GMAT Club Legend
Joined: 07 Jul 2004
Posts: 5032

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Location: Singapore
I took this from the Beginners forum, and I'm posting it [#permalink]

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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

Kudos [?]: 453 [0], given: 0

Director
Joined: 13 Nov 2003
Posts: 788

Kudos [?]: 64 [0], given: 0

Location: BULGARIA

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23 Jun 2005, 02:37
A) insufficient, n could be bigger or less than 10000.
B)sufficient

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Director
Joined: 27 Dec 2004
Posts: 894

Kudos [?]: 54 [0], given: 0

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23 Jun 2005, 05:39
B.

A is insuff because it boils down to n > 9999 and since the stem doesnâ€™t say n is an integer, we canâ€™t assume n is at least 10000.
B is suff because n > 10001

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Director
Joined: 03 Nov 2004
Posts: 848

Kudos [?]: 58 [0], given: 0

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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

Kudos [?]: 58 [0], given: 0

23 Jun 2005, 07:33
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