[quote="vr4indian"]are x and y both positive?

A: 2x -2y =1

b: x/y > 1

from a

x-y = 1/2

thus either

x,y +ve or both negative /y/>/x/ or x +ve and y -ve both are tiny fractions........insuff

from 2

x/y> 1 ( both can be +ve or -ve)...insuff however

rewriting x/y> 1 in the form (x-y)/y > 0

both

x-y = 1/2 ( subs in 2) thus (1/2)/y > 0 thus sure y is +ve consiquently x is +ve too

c is my answer

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