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Ceremonial Stones (Posted on 2006-11-14) Difficulty: 5 of 5
A certain tribe had an interesting kind of annual festival, in which every male member of the tribe (regardless of age) had to contribute a levy of grain into the tribal store. Their unit of weight was roughly the same as our pound avoirdupois, and each tribesman had to contribute one pound of grain for every year of his age.

The contributions were weighed on the tribe's ceremonial scales, using a set of seven ceremonial stones. Each of these weighed an integral number of pounds, and it was an essential part of the ritual that not more than three of them should be used for each weighing, though they need not all be in the same pan.

If ever a tribesman lived to such an age that his contribution could no longer be weighed by using three or fewer stones, the levy of grain would terminate forever. And in the previous year, one old man had died only a few months short of attaining this critical age, greatly to the relief of the headman of the tribe.

It has been determined that the stones can measure the maximum age. What is this age and what were the weights of the seven ceremonial stones?

See The Solution Submitted by Bractals    
Rating: 3.0000 (7 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
re(3): A computer exploration -- solution???thu trang2019-01-03 03:17:19
Questionre(2): RebuttalFrankM2008-02-09 01:17:17
re: RebuttalBractals2008-02-08 14:09:11
Some ThoughtsRebuttalFrankM2008-02-08 10:06:37
re: That's peculiarBractals2008-02-03 12:45:22
That's peculiarFrankM2008-02-03 11:55:53
GeneralisationFrankM2008-02-03 11:46:36
Disagree with "Disagree With Solution - Max Age Very Large"jaime2007-01-30 17:39:54
re: Keeping the TraditionGamer2007-01-10 15:07:00
Disagree With Solution - Max Age Very LargeKevin2007-01-10 14:10:08
re(2): Max age - A computer explorationBernie Hunt2006-11-20 09:36:21
Solutionre: Max age - A computer explorationDej Mar2006-11-20 02:24:30
Max age: 115Bernie Hunt2006-11-15 10:20:16
re(2): A computer exploration -- solution???Charlie2006-11-15 08:56:13
re: A computer exploration -- solution???Bractals2006-11-15 03:15:02
re(3): upper limitBractals2006-11-15 03:07:33
Hints/Tipsre: A computer exploration -- solution??? -- how to get the numbersCharlie2006-11-14 23:50:02
Hints/TipsA computer exploration -- solution???Charlie2006-11-14 23:42:00
re(2): upper limitCharlie2006-11-14 23:33:40
Questionre: upper limitBractals2006-11-14 22:13:33
re(2): At least 109 yearsBernie Hunt2006-11-14 18:17:58
Some Thoughtsre: At least 109 yearsBractals2006-11-14 18:07:48
At least 109 yearsBernie Hunt2006-11-14 17:06:03
SolutionAn improved guess...tomarken2006-11-14 15:04:42
SolutionA guess, can probably be improved....tomarken2006-11-14 13:55:29
Some Thoughtsupper limitCharlie2006-11-14 13:45:30
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