Manbehindthecurtain wrote:
Are x and y both positive?
(1) \(2x-2y = 1\)
(2) \(\frac{x}{y} > 1\)
Statement 1
2(x-y) =1 - all we know is that the difference of x and y must be positive
too many possibilities- [-4,-5] , ; [1/4 , (-1/4)] ;[5, 4] ;[0 (-1/2)]
insuff
Statement 2
Could be negative-negative or positive-positive
insuff
Statement 1 and 2
Using both statements we can rule out the possibility of x being 0 and y being negative and we can rule out the possibility of y being a smaller negative number than x... so the only viable options are positive and
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