BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

Question 6 (nov.24th)

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Data Sufficiency |
Legendary Member
Posts: 2467
Joined: Thu Aug 28, 2008 6:14 pm
Thanked: 331 times
Followed by:11 members

by cramya » Mon Nov 24, 2008 12:44 pm
Please post the correct question.

Stmt I)

n(n+2) = 15
n^2+2n-15=0

n=-5 n=3

2 different solutions

INSUFF

Stmt II

(n+2)^n = 125

n has to be 3 for the above to be true.

SUFF

B)
Top
Legendary Member
Posts: 683
Joined: Tue Jul 22, 2008 1:58 pm
Location: Dubai
Thanked: 73 times
Followed by:2 members

by mals24 » Mon Nov 24, 2008 12:46 pm
Im not getting any answer.

St 1 will give 2 values for n, 3 and -5
St 2 won't give you any integers as n , which is kind of going against what is given in the question. So I guess you have made a typo in option B.

Can you double check the question???
Top
Legendary Member
Posts: 708
Joined: Sun Jun 01, 2008 4:59 am
Location: USA
Thanked: 13 times
Followed by:1 members

by niraj_a » Mon Nov 24, 2008 12:48 pm
whew, thanks cramya, i was losing it trying to find factors of 125 that had a diff of 2.
Top
Legendary Member
Posts: 683
Joined: Tue Jul 22, 2008 1:58 pm
Location: Dubai
Thanked: 73 times
Followed by:2 members

by mals24 » Mon Nov 24, 2008 12:49 pm
Thanks for the correction cramya

Ok if option B is (n-2)^n = 125

(n-2)n = 5^3
n=3

Answer is B.
Top
Legendary Member
Posts: 2467
Joined: Thu Aug 28, 2008 6:14 pm
Thanked: 331 times
Followed by:11 members

by cramya » Mon Nov 24, 2008 6:47 pm
No probs!
Top
Master | Next Rank: 500 Posts
Posts: 245
Joined: Thu Aug 16, 2007 12:41 pm

by bacali » Tue Nov 25, 2008 7:36 am
Hey, sorry guys it didn't copy over correctly. I've corrected the error.


Thanks again cramya. You're priceless to this forum.
Top
Post new topic Post Reply
• Page 1 of 1