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 Ceremonial Stones (Posted on 2006-11-14)
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: ( Back to comment list | You must be logged in to post comments.)
 re(2): Rebuttal | Comment 25 of 26 |
(In reply to re: Rebuttal by Bractals)

I think you missed the following in the problem statement,

"... 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."

Yes indeed. Ill have to learn to read more carefully.

Have you tried the "New Replies" link?
I have, and it's useful too. I guess I'm used to a user page a la wikipedia, which includes notification. I also think it would be the more appropriate place for conversations like this one.. Maybe this is something to take up in the forum?

By the way, where did you get the cool avatar?

 Posted by FrankM on 2008-02-09 01:17:17
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