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BC Question PAT

Discussion in 'DAT Discussions' started by goutamk, Aug 16, 2015.

  1. goutamk

    5+ Year Member

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    upload_2015-8-16_12-33-28.png
    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.
     
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  2. nornton

    2+ Year Member

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    I see 18. Since there is an outline of a cube behind the stack of 3 then you assume there is a cube there. Does that make sense?
     
  3. Elysian12

    2+ Year Member

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    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
     

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