Is x > y?
1. 9x = 4y
2. x = -y
Another simpler approach could be...Statement 1-
Say x= 4, & y=9 => x<y => NO.
But if x= -4, & y=-9 => x>y => Yes.InsufficientStatement 2-
Say x= 1, & y=-1 => x>y => Yes.
But if x= -1, & y=1 => x<y => No.InsufficientStatement 1, & 2 together-
Only one case is possible => x=y=0. Answer C.
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