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You are not logged in. #1 20120111 21:51:06
5 balls with 5 weighingsWe have 5 balls of identical shape and volume, but with different weights, 10, 20, 30 40 and 50 grams. Last edited by anna_gg (20120111 23:05:49) #2 20120111 22:37:02
Re: 5 balls with 5 weighingshi anna_gg Last edited by bob bundy (20120111 22:38:10) You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #3 20120111 23:06:20
Re: 5 balls with 5 weighingsSorry Bob, I just clarified that we are using a balance scale!! #4 20120111 23:09:15
Re: 5 balls with 5 weighingsArrgg! I had a feeling that might be the case. You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #5 20120112 04:14:36
Re: 5 balls with 5 weighingsI have gone through a similar problem "Again the puzzle of balls and scales", which is listed here under the same category, but can't follow the same analysis for the 5x5 problem... #6 20120129 03:42:09
Re: 5 balls with 5 weighingsI started by weighing 2 vs 2, but we have 15 different possibilities: #7 20120129 15:44:20
Re: 5 balls with 5 weighingsHi anna_gg; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. 