If the height of the cone is tripled and the radius is doubled then the volume of the new cone is?

Question

Times the volume of the cone 

Answer 1

V₁=πr²(h⁄3)

V₂=π(2r)²(3h⁄3)=12πr²(h⁄3)=12V₁

Answer 2

V = 1/3 πr²h

V = 1/3 π(2r)²(3h)

v = 4πr²h

The new volume is 4 times as much as the original volume.