Cube counting

[Shjfr]

---

Members don't see this ad.

I was a little confused on one of the question sets on CDP regarding cube counting (test 2, questions 64-66... i think).

First question: on question 64, there are supposed to be 9 cubes as the answer. The reason I got confused about this is that there is a hidden cube on the backside. The reason that I did not count this cube was that it was not supporting another cube. So my question is do we assume that there are no spaces between cubes? I hope this makes sense...

And for question 65 it says there are 4 cubes and I only count 3... even in the explanation there are only 3 cubes grayed out.

Thanks.

 

[Svart Aske]

Heh, I also made the same mistake on that question. I hope the real thing doesn't force us to make assumptions.