Twenty seven solid iron sphere, each of radius r and surface area S are melted to form a sphere with surface area S'. Find the
radius r' of the new sphere.

Twenty seven solid iron spheres,each of radius r and surface area S are melted to form a sphere with surface area S'. Find the radius r of the new sphere.ratio of S and S.

Twenty seven solid iron spheres, each of radius r and surface area S are melted to form a sphere with surface area S ' . Find the radius r of the new sphere. ratio of S and S .

Twenty-seven solid iron spheres, each of radius r and surface area S are melted to form a sphere with surface area S'. Find the (i) radius r' of the new sphere, (ii) ratio of S and S'.

Twenty seven solid iron spheres,each of radius r and surface area S are melted to form a sphere with surface area S'. Find the (i) radius r' of the new sphere,(ii) ratio of SandS'.

Twenty seven solid iron spheres, each of radius r and surface area S are melted to form a sphere with surface area S'. Find the radius r' area of the new sphere.

Twenty seven solid iron sphere, each of radius r and surface area S are melted to form a sphere with surface area S'. Find the ratio of S and S'.

Twenty seven solid iron spheres, each of radius r and surface area S are melted to form a sphere with surface area S'. Find the ratio of S and S'.

Twenty seven solid iron spheres, each of radius r and surface area S aer melted to form a sphere with surface area S^(1). Find the (i) radius r_(1) of the nw sphere (ii) ratio of S and S^(1)