crack pat cube counting

[joonkimdds]

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hi, i was wondering how I am supposed to know whether there is a cube in the center of the structure?? answer says there is a cube missing in the center 🙁

 

[sciencegod]

what center? i count 11 cubes.

 

[joonkimdds]

if you don't count the center, it should be 12. With center is 13.
center = core of the structure

 

[marcusnasland]

rules say if you cant see if a cube is there or not and there are no cubes that would be supported by it... it isnt there. If you cant see it but you see cubes that are supported by the possible cube it is there and you count it... so ya in the picture you should count 12 cubes

 

[sciencegod]

this is an illusion. joonkim, why it cant be in the center, 3 blocks high. thats how i saw it first.

 

[sciencegod]

u guys understand what I'm saying?

 

[marcusnasland]

i dont

 

[UndergradGuy7]

What he means is if you look at it from the top view you should see this...



The numbers represent how many cubes are stacked on each other.

You guys are thinking that there is 2 cubes stacked on each other in each corner, which is incorrect according to the answer of 11 cubes.

 

[sciencegod]

What he means is if you look at it from the top view you should see this...



The numbers represent how many cubes are stacked on each other.

You guys are thinking that there is 2 cubes stacked on each other in each corner, which is incorrect according to the answer of 11 cubes.

exactly. thank you sir.😎

by the way did you see it like that also.

 

[UndergradGuy7]

No, at first I saw it like them. Then read your comment looked back at it like one of those pictures you have to stare at to see it another way and saw it that way.

 

[joonkimdds]

wait, so are there 11 cubes or 12 cubes???

 

[sciencegod]

i think i may be right because maybe the back row should be loweer the way you guys is seeing it.

 

[sciencegod]

agree johnkim?

 

[marcusnasland]

perhaps... you look hard enough you can see it both ways like an optic illusion... anybody have the answer? I dont think they would put one like this on the actual dat?

 

[911dds]

wait, so are there 11 cubes or 12 cubes???

I still just see 11 cubes? Am I totally missing the discussion?😕 How many cubes are there total?

 

[joonkimdds]

I am still thinking there should be 12.

edit: oh wait...I can see both 11 and 12 now.

 

[sciencegod]

is this from crack.

 

[Svart Aske]

I got fooled by this one too. From the explanation given, it's 12 cubes (there is no center cube).

 

[Shjfr]

I posted a picture of how I see it... I see 11 cubes...

Maybe why I didn't do well on PAT LOL

The 11th cube is the depicted as the arrow in the picture (bottom of the tall stack)

 

[klutzy1987]

There arent questions like this on the DAT. The DAT cubes are all straight forward and easy. Ignore the "illusion" questions from CDP and just know the regular questions.

 

[Shjfr]

There arent questions like this on the DAT. The DAT cubes are all straight forward and easy. Ignore the "illusion" questions from CDP and just know the regular questions.

I had an "illusion" cube question on my DAT...