Two spheres of their radios in the ratio 4 : 3. Find its volumes ratio?	Options:
A) 64 : 13  B) 13 : 64  C) 27 : 64  D) 64 : 27  E) none of them

Rationale: sphere volume ( v ) = 4 / 3 π r ( power 3 ) : 4 / 3 π r ( power 3 ) = 4 ( power 3 ) : 3 ( power 3 ) = 64 : 27 answer is d .
Answer: D