wu :: forums « wu :: forums - Pigeonholing a grid » Welcome, Guest. Please Login or Register. May 5th, 2024, 6:54am

RIDDLES SITE WRITE MATH! Home Help Search Members Login Register

wu :: forums    riddles    easy (Moderators: Grimbal, SMQ, ThudnBlunder, Icarus, towr, william wu, Eigenray)    Pigeonholing a grid « Previous topic | Next topic » Pages: 1  Reply Notify of replies Send Topic Print    Author  Topic: Pigeonholing a grid  (Read 373 times) ecoist Senior Riddler     Gender: Posts: 405 Pigeonholing a grid   « on: Jun 16th, 2007, 9:00pm » Quote Modify Four matchsticks make the sides of a square.  40 matchsticks make a 4x4 grid of 16 such squares.  Show that, given any 13 of these matchsticks, at least two of them touch each other. IP Logged Aryabhatta Uberpuzzler     Gender: Posts: 1321 Re: Pigeonholing a grid   « Reply #1 on: Jun 16th, 2007, 9:54pm » Quote Modify 26 pigeons, 25 holes IP Logged Pages: 1  Reply Notify of replies Send Topic Print Forum Jump: ----------------------------- riddles -----------------------------=> easy   - medium   - hard   - what am i   - what happened   - microsoft   - cs   - putnam exam (pure math)   - suggestions, help, and FAQ   - general problem-solving / chatting / whatever ----------------------------- general -----------------------------  - guestbook   - truth   - complex analysis   - wanted   - psychology   - chinese « Previous topic | Next topic »

Powered by YaBB 1 Gold - SP 1.4!
Forum software copyright © 2000-2004 Yet another Bulletin Board