Answer:
For this case we know that the volume for the object A is

And for the object B we know that the volume is

And we want to find how many times for the solid A is larger than B. And we can find the ratio between the two values and we got:

And for this case the Solid A is 512 times larger than the solid B
Explanation:
For this case we know that the volume for the object A is

And for the object B we know that the volume is

And we want to find how many times for the solid A is larger than B. And we can find the ratio between the two values and we got:

And for this case the Solid A is 512 times larger than the solid B