They do what they do.
Thinking about schools and peers and parent-child attachments....I came across one of my favorite posts .
free SAT practice test
Since the 3x2x1 fits evenly into the cube without nothing left over, you can just divide the volume of the box by the volume of the block.You can even avoid cubing 6 by thinking 6x6x6 / 6 or just 36.
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