if n is not equal to zero, is nxny? I) n^2x n^2y

Question

if n is not equal to zero, is nx>ny?
I) n^2x > n^2y
II) x>y

sparky · Answer

E.

essentially what you are looking for is n(x-y) > 0

1) insuff n can be + or -, or >1 or < 1

2) insuff n can be + or -

1)+2) insuff

rthothad · Answer

One more for E

Is n(x - y) > 0?
Statement 1: n^2(x-y) > 0
if x-y is -ve and n is -ve the above statement will be true but n(x-y) will be false at the same time if n is -ve n(x-y) will be > than 0, so insufficient
Statement 2: x>y, we do no know the value of n is insufficient.
Both put together we do not know the value of n, so E

thearch · Answer

Essentially the 2 statements are not saying different things, because from st 1 you can simplify n^2 (it is not 0 and it is always positive)

mandy · Answer

I would go for E 

My reasoninng is as followed

the question is nx>ny 
so working out the question 
i get nx- ny >0 
for this to be positive n(x-y)>0
either n>0 OR x-y>0

ST1 n^2x>n^2y

since it is the same base we have 2x>2y
so x>y 

insufficient nothing about n 


ST 2 SAME INFO


HENCE even together insufficient

AJB77 · Answer

S1 is insuff - just substitute n=5 and n=-5 and x=y=1

S2 is insuff - just substitute n=-1 and( x=-2,y=-3 or x=2, y=1)

S1+S2 is still insuff because you can use S2 but with n=5 and -5 and get different results

E is my answer

Folaa3 · Answer

I got E for this. 

Stem only says N is not zero, but it could be less than or greater than zero.

if n is not equal to zero, is nx>ny? I) n^2x > n^2y

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