Answer:

Step-by-step explanation:
This question was linked from another one regarding the lengths of the cubes, you can find it here: brainly.com/question/22396279
That question gave you the ratio of the lengths, which is
. Now in geometry, a general rule about solids is that if they are similar, the ratio of their volumes is the cube of the ratio of their edges. In a cube's case, every single cube known to mankind is similar as all the edges are the same length.
So the ratio of volumes would be
, which can be simplified as
.