If x,x+y,x+2yx, x+y, x+2yx,x+y,x+2y is arithmetic and x,x+y,x+3yx, x+y, x+3yx,x+y,x+3y is geometric (x,y≠0x,y \neq 0x,y=0), what is the ratio x/yx/yx/y?
1
2
1/2
3