if radius is doubled height is halved in cylinder , then find volume +C.S.A?

Let the radius and height of cylinder be r and h respectively.

When radius is doubles, it becomes 2r

When height is halved, it becomes h/2

Now, Volume of cylinder =

And, CSA =

When radius is doubles and height is halved,

Volume of cylinder = 

CSA = remains same

Thus, Volume + CSA =