Asked by Naruto

A painted wooden cube whose edge is 3 inches is cut into 27 one-inch cubes. How many of these small cubes have just two painted sides?
a.12
b.18
c.9
d.none of the above
Answered by R_scott
edges of the original cube , but not the corners

looks like a dozen
Answered by Reiny
Only the middle piece of the 6 edges have two sides painted, the corners have 3 sides painted
Make yourself a rough sketch to see that.
So there would be 6, but that is not one of the given choices, so, none of the above
Answered by R_scott
umm ... a cube has 12 edges ... and 6 faces
Answered by Reiny

Duhh,
R_scott, you are right, and I even told them to make a sketch.
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