Ok, thanks, Hans, for the provided link -- everything clear (and clean) now!

http://www.texterblog.de/index.php/2009/07/20/update-zu-10-mehr-oder-weniger...

Best, É. -----Message d'origine----- De : math-fun-bounces@mailman.xmission.com [mailto:math-fun-bounces@mailman.xmission.com] De la part de Hans Havermann Envoyé : lundi 21 septembre 2009 13:08 À : math-fun Objet : Re: [math-fun] Soap mathematics

... could please someone help? Where did I gain 10%?

The older packaging was not the direct predecessor of the product, but rather one from four years ago. The direct predecessor had 1.26 liters and did 18 washes. You'll find the manufacturer's response to the "controversy" (in German) half-way down this page: http://www.texterblog.de/index.php/2009/07/20/update-zu-10-mehr-oder-weniger... _______________________________________________ math-fun mailing list math-fun@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/math-fun