You have a square piece of paper and you do not know its length or width.

What is the minimum number of folds required in order for the paper to only show 1/16 of its original size, 2/16 of it's original size, 3/16 of its original size........15/16 of its original size.

Note: You do not know where halfway marks or quarter marks lie on this piece of paper therefore you must use folds to mark these areas. You are allowed to use folds as guides to make other folds.

Isn't it true that 4 folds are enough to display 9/16 and 11/16? The solution says 5 folds.

Posted by Bryan on 2003-03-28 12:23:13