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DS Query

by anujgoyal11 » Sat Jul 07, 2007 9:49 am
Hey friends,
can u please help me in getting the answer of beloq question
Is n an integer greater than 4?
(1) 3n is a positive integer.
(2) n/3 is a positive integer.

I think answer will be C. Please correct me if i am wrong with explanation.
Thanks
Anuj
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Source: — Data Sufficiency |
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Re: DS Query

by jayhawk2001 » Sat Jul 07, 2007 11:52 am
anujgoyal11 wrote:Hey friends,
can u please help me in getting the answer of beloq question
Is n an integer greater than 4?
(1) 3n is a positive integer.
(2) n/3 is a positive integer.
1 - insufficient. Take n=3, n=6. Both yield positive integers

2 - insufficient. Again, take n=3, n=6. Both satisfy condition but we cannot
confirm if n is > 4.

Together they are still insufficient. I'd say E
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by thumpin_termis » Sat Jul 07, 2007 11:24 pm
Anonymous wrote:There is an doubt that cann't we take the second statement information like n=3,6... to statment 1 where we use the value of n from statment 1.
if we can not use then can u please give any reason..
Thnx
Anuj
The given statement is asking if n > 4.

As you said, n = 3 OR 6 satisfies both statement 1 and 2.

if n=3, then n < 4, but
if n=6, then n > 4;

so we can't determine if n > 4. Answer E.
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by moneyman » Sun Jul 08, 2007 5:20 am
Statement (1) is insufficient because if n=1 then the answer is no and if n=4 then the answer is yes.

Statement (2) similarly is insufficient because if n=3 then the ans is no and if n=24 then the ans is yes.

We are left with C and E.

It cannot be C because if n=3 then one statement says yes and one statement says no.Hence E is the best answer.
Maxx
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