Data Sufficiency

If s and t are two different numbers of the number line, is s+t equal to 0?
1) The distance between s and 0 is the same as the distance between t and 0.
2) 0 is between s and t.



OA: A

Stmt I)

Tell us that the absolute value of s and t is the same but one is positive and the other one is negative

Eg: s=5 t=-5 or t=5 s=-5

s+t is goign to be 0

SUFF

Stmt II
0 is between s and t (one is positive and the other negative)

For eg:

s=-5 t=-5 then s+t is 0
(or)
s=-10 t=20 then s+t not equal to 0

Since we dont anything about their distance from 0 i.e their positions on the number line there's no way to pinpoint to a single detrminable value for s+t

INSUFF


A)

cramya wrote:Stmt I)

Tell us that the absolute value of s and t is the same but one is positive and the other one is negative

Eg: s=5 t=-5 or t=5 s=-5

s+t is goign to be 0

SUFF

Stmt II
0 is between s and t (one is positive and the other negative)

For eg:

s=-5 t=-5 then s+t is 0
(or)
s=-10 t=20 then s+t not equal to 0

Since we dont anything about their distance from 0 i.e their positions on the number line there's no way to pinpoint to a single detrminable value for s+t

INSUFF


A)

Oh thanks, I was just assuming that they'd be half way in between.