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Topic: 50-link chain (Read 516 times) |
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BNC
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50-link chain
« on: Jan 24th, 2005, 1:35pm » |
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I need a closed chain that is composed of 50 links (that is, the "last" link is connected to the "first").
I have two options:
1. I can buy that chain for $25
2. I can use some old small chains I found: 1 3-link chain, 1 four-link, 2 five-link, 3 six-link, 1 seven-link and 1 eight-link. These parts are free, but there is a catch. In order to put them together I have to go to a chain-master, and she chrges $1 to open a link, and $2 to close a link.
What is the most economical solution?
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How about supercalifragilisticexpialidociouspuzzler [Towr, 2007]
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rmsgrey
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Re: 50-link chain
« Reply #1 on: Jan 24th, 2005, 2:54pm » |
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I can get it done for $21.
I suspect I may have met the problem before at some point, so I won't detail my solution just yet.
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towr
wu::riddles Moderator
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Re: 50-link chain
« Reply #2 on: Jan 25th, 2005, 1:09am » |
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clever.. It took me a few minutes to see how to save $6..
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Wikipedia, Google, Mathworld, Integer sequence DB
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rmsgrey
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Re: 50-link chain
« Reply #3 on: Jan 25th, 2005, 6:40am » |
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on Jan 25th, 2005, 1:09am, towr wrote:| clever.. It took me a few minutes to see how to save $6.. |
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Making $19 total cost
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towr
wu::riddles Moderator
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Re: 50-link chain
« Reply #4 on: Jan 25th, 2005, 7:42am » |
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on Jan 25th, 2005, 6:40am, rmsgrey wrote:| Making $19 total cost |
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No no.. I meant saving $6 on the $27 you'd expect to pay when using your own 9 chains..
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Wikipedia, Google, Mathworld, Integer sequence DB
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Ain'tNobody
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Bummer! At present, I can only get the cost down to $24, which may or may not be more economical depending on the contiplated use of the chain and the difference in effective ages between the new chain and the older ones.
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rmsgrey
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Re: 50-link chain
« Reply #6 on: Feb 3rd, 2005, 11:53am » |
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on Feb 3rd, 2005, 10:48am, Ain'tNobody wrote:| Bummer! At present, I can only get the cost down to $24, which may or may not be more economical depending on the contiplated use of the chain and the difference in effective ages between the new chain and the older ones. |
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If you've got it down to $24, then you've already made the biggest conceptual leap - saving the further $3 just takes a little variation.
Unless, of course, you'vecome up with a totally different solution, in which case I'd be very interested to find out what it is.
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Ain'tNobody
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While puzzling over this problem I went for a walk and passed a man on the street hawking t-shirts emblazoned with "Eagles Win Super Bowl". The man was shouting "two for one, two for one" and suddenly my original total of $24 didn't seem right. New total - $21
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