IMO E
1)2x - 2y = 1
or x=1/2 + Y now x and y can be +ve or -ve. take examples y=-5 and y=10
INSUFF
2) it just tells you that x>y both can be positive. x=20, y=10
or both can be negative- x=-20,y=-10
INSUFF
combining
x>y
and
x=1/2 + Y- in this eq positive or negative X is always greater than Y
oops sorry I got it..
It has to be C. I did a mistake
1)2x - 2y = 1
or x=1/2 + Y now x and y can be +ve or -ve. take examples y=-5 and y=10
INSUFF
2) x>y when both are positive
x<y when both are negative
combining
x=1/2 + Y- in this eq positive or negative X is always greater than Y
so from 2 x>y i.e. both are positive
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