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Chairs

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Chairs [#permalink]

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New post 29 Apr 2011, 02:24
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

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

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Re: Chairs [#permalink]

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New post 29 Apr 2011, 05:00
(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

Answer - B
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Re: Chairs [#permalink]

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New post 29 Apr 2011, 05:50
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

Answer - B

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Re: Chairs [#permalink]

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New post 29 Apr 2011, 06:59
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).

Answer - B.
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Re: Chairs [#permalink]

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New post 29 Apr 2011, 08:05
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).

Answer - B.

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Re: Chairs [#permalink]

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New post 29 Apr 2011, 08:23
Agreed, actually it's good that you pointed this out, I ought to be more careful/attentive :)
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New post 29 Apr 2011, 08:36
B a clear winner,giving n = 25.
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Re: Chairs   [#permalink] 29 Apr 2011, 08:36
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