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crazy4gmat
- Master | Next Rank: 500 Posts
- Posts: 160
- Joined: Fri Aug 22, 2008 4:54 am
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- GMAT Score:660
IMO E
1) x>0
we need to know about Y
ex: x=10 Y=-8
(x-y)/(x+y) is 9
when x=10 y=-20
(x-y)/(x+y) is negative
NOT SUFF
2) Y<0
take the same cases as above
NOT SUFF
combined
again take the same cases as above
NOT SUFF
