Question

if 50% of x-y=30%of x+y then what % of x is y?

Answer 1

50%*(x -y) =30%(x+y)
50(x-y) =30(x+y)
50x -50y =30x +30 y
20 x = 80 y
y/x =20/80
%of x is y =20 *100 /80 = 25%