Chairs : DS Archive
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# Chairs

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Manager
Joined: 06 Apr 2010
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29 Apr 2011, 01:24
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Difficulty:

(N/A)

Question Stats:

83% (02:04) correct 17% (00:00) wrong based on 6 sessions

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[Reveal] Spoiler: OA
SVP
Joined: 16 Nov 2010
Posts: 1672
Location: United States (IN)
Concentration: Strategy, Technology
Followers: 33

Kudos [?]: 514 [0], given: 36

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29 Apr 2011, 04:00
(1) says

10 + (n-1) > 30

=> n > 21

(1) is not sufficient as n could be 22 or 25

(2)

{10 + (n-1)}/n > 1.36

=> 9 + n > 1.36n

=> 0.36n < 9

=> 0.04n < 1

=> n < 25

Sufficient as n is an integer, so n !> 24

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Manager
Status: It's "Go" Time.......
Affiliations: N.C.C.
Joined: 22 Feb 2011
Posts: 183
Location: India
Followers: 6

Kudos [?]: 68 [0], given: 2

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29 Apr 2011, 04:50
Mr.Subhash Ghosh why are you using inequality for sentence#2??

subhashghosh wrote:
(1) says

10 + (n-1) > 30

=> n > 21

(1) is not sufficient as n could be 22 or 25

(2)

{10 + (n-1)}/n > 1.36

=> 9 + n > 1.36n

=> 0.36n < 9

=> 0.04n < 1

=> n < 25

Sufficient as n is an integer, so n !> 24

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He who knows when he can fight & when He can't will be victorious.

SVP
Joined: 16 Nov 2010
Posts: 1672
Location: United States (IN)
Concentration: Strategy, Technology
Followers: 33

Kudos [?]: 514 [0], given: 36

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29 Apr 2011, 05:59
Sorry, I was doing another thing also on my system while posting this. Even then too, the answer is B, as you get the answer, n = 25, which is > 24. So we have a definite "Yes" as answer from (2).

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Formula of Life -> Achievement/Potential = k * Happiness (where k is a constant)

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Manager
Status: It's "Go" Time.......
Affiliations: N.C.C.
Joined: 22 Feb 2011
Posts: 183
Location: India
Followers: 6

Kudos [?]: 68 [0], given: 2

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29 Apr 2011, 07:05
No arguments on the answer choice.I was just curious to know how come u r using inequalities
subhashghosh wrote:
Sorry, I was doing another thing also on my system while posting this. Even then too, the answer is B, as you get the answer, n = 25, which is > 24. So we have a definite "Yes" as answer from (2).

_________________

We are twice armed if we fight with faith.

He who knows when he can fight & when He can't will be victorious.

SVP
Joined: 16 Nov 2010
Posts: 1672
Location: United States (IN)
Concentration: Strategy, Technology
Followers: 33

Kudos [?]: 514 [0], given: 36

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29 Apr 2011, 07:23
Agreed, actually it's good that you pointed this out, I ought to be more careful/attentive
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VP
Status: There is always something new !!
Affiliations: PMI,QAI Global,eXampleCG
Joined: 08 May 2009
Posts: 1353
Followers: 17

Kudos [?]: 240 [0], given: 10

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29 Apr 2011, 07:36
B a clear winner,giving n = 25.
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Re: Chairs   [#permalink] 29 Apr 2011, 07:36
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