If 2x=4y=z, what is x-y, in terms of z?	Choose the correct choice from the following choices.
A) z/4	B) z/2	C) z	D) 2z	E) 4z
2x=4y=z   i.e. x = z/2   and y = z/4   x-y = z/2 - z/4 = z/4   z/4nswer: Option z/4
<result>A</result>
If 2x=4y=z, what is x-y, in terms of z?