Mathematics

Problem

A solid sphere of radius

10\,\text{cm}

is melted and recast into

8

identical smaller spheres. The total surface area of all the smaller spheres is a)

8

times the surface area of the original sphere b)

\dfrac{1}{4}

of the surface area of the original sphere c) twice the surface area of the original sphere d)

4

times the surface area of the original sphere