The height of two right circular cones are in the ratio 1:2 and their perimeters of their bases are in the ratio 3:4, the ratio of their volume is?
Choose the correct choice from the following choices:  A) 9 : 38  B) 9 : 31  C) 9 : 32  D) 9 : 39  E) 9 : 35

Rationale: 9 : 32 answer : c
Answer: C