The ratio between the radii of two spheres is 1:3. Find the ratio between their volumes?
Choose the correct choice from the following options:
A) 27:1
B) 1:27
C) 1:9
D) 9:1
E) 1:2
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?