From: utzoo!decvax!harpo!npois!alice!rhm Newsgroups: net.math Title: puzzle Article-I.D.: alice.600 Posted: Thu May 27 15:42:01 1982 Received: Sat May 29 01:53:21 1982 Find a non-zero number x with the property that when you write the number in decimal notation, then remove the right-hand digit and add it to the left end of the number, the result is 2*x. i.e. 214 -> 421 is close, but no cigar.