ROOTS

This topic has expert replies
Legendary Member
Posts: 789
Joined: Sun May 06, 2007 1:25 am
Location: Southern California, USA
Thanked: 15 times
Followed by:6 members

ROOTS

by resilient » Fri Apr 11, 2008 8:51 am
Simplify (1/3-ROOT 8 ) ^2

1. 9+8
2. 9+28
3. 9+68
4. 17+28
5. 17+68


qa is e, not quite following this!
Appetite for 700 and I scraped my plate!

Junior | Next Rank: 30 Posts
Posts: 25
Joined: Mon Mar 31, 2008 6:09 pm

by GMAT_crusher » Fri Apr 11, 2008 9:33 am
did not quite get the stem of the question due to the FUNNY char!!

Generally I do a PREVIEW before clicking the SUBMIT button.

Senior | Next Rank: 100 Posts
Posts: 93
Joined: Thu Apr 10, 2008 1:42 pm
Location: Chicago
Thanked: 20 times

Re: ROOTS

by Musiq » Fri Apr 11, 2008 1:39 pm
Enginpasa1 wrote:Simplify (1/3-ROOT 8 ) ^2

1. 9+8
2. 9+28
3. 9+68
4. 17+28
5. 17+68


qa is e, not quite following this!
Hey Enginpasa,

I am fairly sure that there's something wrong with those options. There is no way that the irrational number ROOT of 8, would get resolved into simple integers like you stated in your options.

Please let us know if those options are indeed correct.

Thanks!
For love, not money.

User avatar
GMAT Instructor
Posts: 3225
Joined: Tue Jan 08, 2008 2:40 pm
Location: Toronto
Thanked: 1710 times
Followed by:614 members
GMAT Score:800

by Stuart@KaplanGMAT » Fri Apr 11, 2008 2:23 pm
Yah, the question is definitely wrong.

Just estimating, 1/3 - root8 = approx .333 - 2.8 = approx -2.5

-2.5 squared is 6.25. None of the answers are even remotely close.
Image

Stuart Kovinsky | Kaplan GMAT Faculty | Toronto

Kaplan Exclusive: The Official Test Day Experience | Ready to Take a Free Practice Test? | Kaplan/Beat the GMAT Member Discount
BTG100 for $100 off a full course

Senior | Next Rank: 100 Posts
Posts: 71
Joined: Sun Apr 06, 2008 2:24 pm
Thanked: 1 times

by cjiang16 » Sat Apr 12, 2008 4:45 pm
none of the five answers is correct.