Question

Can someone help me understand this?? I ended up getting 594 and that’s not even an option!

Answer 1

Your mistake was that you only worked out the volume of the cuboid which is indeed 594.

Answer 2

Option D

Explanation:

I am taking a guess here, but since the volume of the rectangle part is 594, and it is sort of a similar size as the top part, then I assume it is D.

Let me know how it goes.