if 60% of (x-y) = 30% of (x+y) then what percent of x is y?	Pick one
A) 33 %	B) 10 %	C) 5 %	D) 15 %	E) 25 %

Rationale: "60 % of ( x - y ) = 30 % of ( x + y ) ( 60 / 100 ) ( x - y ) = ( 30 / 100 ) ( x + y ) 6 ( x - y ) = 3 ( x + y ) 3 x = 9 y x = 3 y therefore required percentage = ( ( y / x ) x 100 ) % = ( ( y / 3 y ) x 100 ) = 33 % answer is a ."
Answer: A