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

Redeem

P

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
User avatar
MBA Student
Posts: 1194
Joined: Sat Aug 16, 2008 9:42 pm
Location: Paris, France
Thanked: 71 times
Followed by:17 members
GMAT Score:710

P

by gmat740 » Tue Jun 16, 2009 6:13 am
If n and p are integers, is p>0?
1). n+1>0
2). np>0


[spoiler]1. n= 0.5 or n= - 0.5
2. n and p = +ve or n and p = -ve
Combine: if n = 0.5, p= +ve and if n = -0.5 then p= -ve.
So E
OA-C[/spoiler]
Top
Source: — Data Sufficiency |
User avatar
Master | Next Rank: 500 Posts
Posts: 472
Joined: Sun Mar 29, 2009 6:54 pm
Thanked: 56 times

Re: P

by ssmiles08 » Tue Jun 16, 2009 6:27 am
gmat740 wrote:If n and p are integers, is p>0?
1). n+1>0
2). np>0


[spoiler]1. n= 0.5 or n= - 0.5
2. n and p = +ve or n and p = -ve
Combine: if n = 0.5, p= +ve and if n = -0.5 then p= -ve.
So E
OA-C[/spoiler]
I think the mistake you are doing is using n and p as 1/2 and -1/2. The question tells us that n and p are integers.

together the smallest value n can be is 1. if n is (+), then p is also (+)
Top
Post new topic Post Reply
• Page 1 of 1