If the radius if a sphere is 2r, then its volume will be
Given, the radius of a sphere is 2r.
The volume of a sphere
Thus, the volume of the given sphere = 
Thus, option d is correct.
2
If the radius if a sphere is 2r, then its volume will be
Given, the radius of a sphere is 2r.
The volume of a sphere
Thus, the volume of the given sphere =
Thus, option d is correct.