Question 954120
Volume of a sphere is  (4/3)*pi*r*r*r.
And surface area is 4*pi*r*r.
Given 
.
.
  volume = surface area 

Hence..
.
.
 (4/3)*pi*r*r*r = 4*pi*r*r
.
After solving this... 
.
.
      r = 3...

Ans...