Friday, January 2, 2009
January 2, 2009
A wooden cube
n
units on a side is painted red on all six faces and then cut into
n
3
unit cubes. Exactly one-fourth of the total number of faces of the unit cubes are red. What is
n
?
Interactive version of problem and solution.
Buy
Martin Gardner's Mathematical Games
Newer Post
Older Post
Home