The ratio between the radii of two spheres is 1:3. Find the ratio between their volumes? Answers
A) 1:28  B) 1:27  C) 1:22  D) 1:21  E) 1:29
r1 : r2 = 1:3   r13 : r23 = 1:27   Answer: 1:27
<result>B</result>
The ratio between the radii of two spheres is 1:3. Find the ratio between their volumes?