It is currently 21 Mar 2018, 11:53

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# Is n an integer?

Author Message
Intern
Joined: 23 Oct 2008
Posts: 23

### Show Tags

15 Nov 2008, 05:35
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

I am confused by the question and explanation of Q146 in Data Sufficiency of OG. Could any smart guy please help?

Q146
Is n an integer?
(1) n^2 is an integer
(2) n^(1/2) is an integer.

I understand that (2) is sufficient. but I also considered that (1) was also sufficent. But the answer is B, only (2) is sufficient.

could any one please provide examples illustrating why (1) is not sufficient?

Senior Manager
Joined: 21 Apr 2008
Posts: 265
Location: Motortown
Re: Is n an integer? [#permalink]

### Show Tags

15 Nov 2008, 05:54
From stmt1:
Lets take a case where n = sqrt(2)
In this case n^2 = 2, which is an integer, but n= sqrt(2) is not a integer.

Hope that help!
Intern
Joined: 23 Oct 2008
Posts: 23
Re: Is n an integer? [#permalink]

### Show Tags

15 Nov 2008, 05:59
Understood. Thank you
Re: Is n an integer?   [#permalink] 15 Nov 2008, 05:59
Display posts from previous: Sort by

# Is n an integer?

Moderator: chetan2u

 Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.