PQR < P?

This topic has expert replies
Source: — Data Sufficiency |

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

by cramya » Sun Apr 19, 2009 7:25 pm
Given : p < q and p< r

To find: Is pqr < p

Stmt I

pq<0

Since p<q p is negative and q is positive

Since we dont know anything about sign of r we cant say if pqr < p

If r is negative then NO
If r is positive the YES

INSUFF

Stmt II

same explanation as abobe but in this case we dont know sign of q


INSUFF

Together:

p<q and p<r

p is neagtive q and r are both positive

So is pqr < p

(negative)(positive)(positive) < neagtive YES if p, q and r are integer

Let say p = -2 q=1/2 r=1/2 then NO

pqr > p

INSUFF

Good one...(key: we dont know if p.q.r are integers or fractions)

Choose E

User avatar
MBA Student
Posts: 532
Joined: Wed Jan 28, 2009 1:39 pm
Location: Barcelona
Thanked: 33 times
Followed by:9 members
GMAT Score:640

by hk » Sun Apr 19, 2009 7:33 pm
cramya, ya its a good one. A good practice for beginners or intermediate test takers but experts like you, i'm sure, must find it a piece of cake. !!! :D
Wanna know what I'm upto? Follow me on twitter: https://twitter.com/harikrish