(In reply to
another thought by ThoughtProvoker)
Five Easy Pieces (that was a movie title wasn't it?)
The problem is to find the minimum number of pieces (not cuts). The problem states that "the people know where the center of each bun is". It does not say that they are incapable of measuring angles. So if they can find the center and also measure angles, then they can divide the middle bun into 25/32 and 7/32.
So just like Thought Provoker's 2nd comment, cut the big bun in half and give the 2 halves to persons A and B. Give the little bun to person C. Cut the middle bun into 2 pieces. The larger piece measures 281.25 degrees, or 25/32 of the entire bun; this goes to person D. The smaller piece goes to C. Five Easy Pieces (easy if you can measure 25/32 and 7/32 of a circle)
And that's my story

Posted by Larry
on 20040507 23:15:02 