This DS question is driving me crazy?
Any help is greatly appreciated...
If 0<X<Y, what is the value of [(X+Y)^2]/[(X-Y)^2]?
(1) X^2 + Y^2 = 3XY
(2) XY = 3
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GMAT Prep Data Sufficiency Question
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jayhawk2001
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(x^2 + y^2 + 2xy) / (x^2 + y^2 - 2xy)
1 - sufficient. 5xy / xy = 5. So, we know the value.
2 - insufficient. Just knowing xy will not help.
Hence A
1 - sufficient. 5xy / xy = 5. So, we know the value.
2 - insufficient. Just knowing xy will not help.
Hence A
