I was wondering how there are 18 cubes since I only counted 17? It also said that one of the cubes had 0 sides painted and the only possible one that I can think of is the one at the bottom of the stack of 3 but doesn't that mean that there must be a cube behind it? I thought that we weren't allowed to assume that cubes are present (if hidden from sight) unless they're needed for support.
BC Question PAT
- Thread starter goutamk
- Start date
I was wondering how there are 18 cubes since I only counted 17? It also said that one of the cubes had 0 sides painted and the only possible one that I can think of is the one at the bottom of the stack of 3 but doesn't that mean that there must be a cube behind it? I thought that we weren't allowed to assume that cubes are present (if hidden from sight) unless they're needed for support.
Starting with the back row
tallest stack: 5 cubes
left of that: 2 cubes
and most left: 1
Middle row
far right: 1 cube
left of that: 3 cubes
most left: 2 cubes
And then the 4 single front ones
Total: 18
Your reasoning is correct so you should be getting 18 cubes
tallest stack: 5 cubes
left of that: 2 cubes
and most left: 1
Middle row
far right: 1 cube
left of that: 3 cubes
most left: 2 cubes
And then the 4 single front ones
Total: 18
Your reasoning is correct so you should be getting 18 cubes
