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brick is disassembled

by sanju09 » Sat Jul 24, 2010 2:02 am
The solid brick shown is made of small bricks of side 1. When the large brick is disassembled into its component small bricks, the total surface area of all the small bricks is how much greater than the surface area of the large brick?
A. 32
B. 40
C. 60
D. 72
E. 80

[spoiler]Source: majortests.com[/spoiler]
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by outreach » Sat Jul 24, 2010 2:18 am
B

12 bricks possible =12 *6=72;
surface area of existing brick=32

sanju09 wrote:The solid brick shown is made of small bricks of side 1. When the large brick is disassembled into its component small bricks, the total surface area of all the small bricks is how much greater than the surface area of the large brick?
A. 32
B. 40
C. 60
D. 72
E. 80

[spoiler]Source: majortests.com[/spoiler]
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