If the length of an edge of cube P is thrice the length of an edge of cube Q, what is the ratio of the volume of cube Q to the volume of cube P?  Choose the correct answer
A) 1/4
B) 1/5
C) 1/6
D) 1/27
E) 1/9
The length of cube Q = 1;   The length of cube P = 3;   The ratio of the volume of cube Q to the volume of cube P = 1^3/3^3 = 1/27   Answer : 1/27
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If the length of an edge of cube P is thrice the length of an edge of cube Q, what is the ratio of the volume of cube Q to the volume of cube P?