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

Redeem

2

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
User avatar
Legendary Member
Posts: 2134
Joined: Mon Oct 20, 2008 11:26 pm
Thanked: 237 times
Followed by:25 members
GMAT Score:730

2

by logitech » Tue Nov 04, 2008 5:37 pm
If x and y are integers and xy does not equal 0, is xy < 0?

(1) y = x4 – x3

(2) x is to the right of y on the number line

OA C
LGTCH
---------------------
"DON'T LET ANYONE STEAL YOUR DREAM!"
Top
Source: — Data Sufficiency |
Legendary Member
Posts: 2467
Joined: Thu Aug 28, 2008 6:14 pm
Thanked: 331 times
Followed by:11 members

by cramya » Tue Nov 04, 2008 5:46 pm
Stmt I

x=2 y = 8 xy>0
x=-2 y24 xy<0

INSUFF

Stmt II

X to right of y could be x and y are both negative , x and y both positive and y negative x positive

DIFFERETN SIGNS FOR xy possible INSUFF


Stmt I and II

If y=x^4-x^3 y will always be positive and if y is positive x has to be positive since x is to the right of y on number line

hence xy>0 or positive SUFF

C)
Top
Post new topic Post Reply
• Page 1 of 1