OG#12 DS#18: Maximum number of rectangular Blocks

[ayshaw.asif]

[editor: deleted. you can't post OG problems on this site.
please read the forum rules before posting. you are responsible for following those rules.
thank you.]

[Ben Ku]

The rules can be found here:
http://www.manhattangmat.com/forums/read-before-you-post-gmatprep-math-guidelines-t2723.html