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If -10 < k < 10, is K > 0 ?" (1) k.k > 4 (2) 1 -

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Senior Manager
Joined: 23 Aug 2003
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If -10 < k < 10, is K > 0 ?" (1) k.k > 4 (2) 1 - [#permalink]  02 Mar 2004, 09:38
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"If -10 < k < 10, is K > 0 ?"

(1) k.k > 4

(2) 1 - k > 0

Vivek.
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"Start By Doing What Is Necessary ,Then What Is Possible & Suddenly You Will Realise That You Are Doing The Impossible"

Senior Manager
Joined: 23 Sep 2003
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Location: US
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Kudos [?]: 2 [0], given: 0

E?

Quote:
(1) k.k > 4

do you mean k*k? I'm a bit confused with "k.k" If you mean k*k then this statement is insufficient.

Statement 2 is also insufficient. All we know is that k < 1. We don't know if it's greater than 0.
Manager
Joined: 11 Oct 2003
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Put all the conditions on a number line and you will see that C is the answer.
Director
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I agree with mantha that C is the answer. K^2>4 so 10 >K>2 and
-2>K>-10 so A is insufficient. Statement B) 1-K>0 so -10<K<1 so B is also insufficient.
From both statements A) and B) follows that -10< K<-2. Then C) should be the answer, IMO
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If -10 < k < 10, is K > 0 ?" (1) k.k > 4 (2) 1 -

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