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If k is a positive integer, what is the value of k? (1) k^2 <10 (2) k

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V
Joined: 02 Sep 2009
Posts: 47037
If k is a positive integer, what is the value of k? (1) k^2 <10 (2) k [#permalink]

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New post 13 Apr 2018, 02:07
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

89% (00:30) correct 11% (00:20) wrong based on 27 sessions

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Manager
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B
Joined: 28 Apr 2014
Posts: 52
GMAT 1: 640 Q50 V25
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Re: If k is a positive integer, what is the value of k? (1) k^2 <10 (2) k [#permalink]

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New post 13 Apr 2018, 03:08
1
IMO C

St1 k=1,3
insufficient
St2 k=2,3......
insufficient

combining k=3
sufficient
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Director
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Joined: 21 May 2013
Posts: 651
Re: If k is a positive integer, what is the value of k? (1) k^2 <10 (2) k [#permalink]

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New post 13 Apr 2018, 03:12
1
NiharikaR wrote:
IMO C

St1 k=1,3
insufficient
St2 k=2,3......
insufficient

combining k=3
sufficient


k can be either 2 or 3. So Answer is E.
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Joined: 07 Mar 2017
Posts: 6
Re: If k is a positive integer, what is the value of k? (1) k^2 <10 (2) k [#permalink]

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New post 26 Apr 2018, 15:45
NiharikaR wrote:
IMO C

St1 k=1,3
insufficient
St2 k=2,3......
insufficient

combining k=3
sufficient


Would be:
(1)
K={1,2,3}
K^2={1,4,9}<10

(2)
K={2,3}

So even if you use both of them you can't conclude the value of K, could be either 2 or 3.
Director
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Joined: 02 Oct 2017
Posts: 596
Re: If k is a positive integer, what is the value of k? (1) k^2 <10 (2) k [#permalink]

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New post 28 Apr 2018, 06:23
I) gives value of K as 1,2 and 3
Insufficient

II)gives value as 2,3

Combining give values as 2 and 3
Multiple values so no definite answer so E is aNswer

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Re: If k is a positive integer, what is the value of k? (1) k^2 <10 (2) k   [#permalink] 28 Apr 2018, 06:23
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