What is the minimal cost (It's not 12 dollars)
2006-09-14 13:19:03 · 10 answers · asked by tom 2 in Science & Mathematics ➔ Mathematics
There is 5 separate three link chains and they have to be connected into one long chain for the lowest cost you can get.
2006-09-14 13:53:19 · update #1
Depends on the length of each chain. If you happen to have one that is 3 links long, then you can do it for $9.
Open those three links, now you have 4 pieces of chain left. Use the three links, between the 4 pieces.
3 opened links = $3
3 closed links = $6
Total = $9
Edit: Thanks for the update confirming my answer. Like I said, if you take apart one of the 3 link chains, you now only have 4 chains to connect. So that would be 3 links opened, 3 links close for a total of $9. I'm pretty sure this has to be the minimum and your intended answer.
The intuitive answer is to open a link at the end of chain 1 and connect it to chain 2, then open a link at the end of chain 2 and connect it to chain 3, etc. But that would be $12. The correct answer is to break apart all three links in chain 1, then use them to connect chain 2 to 3, 3 to 4 and 4 to 5. That's only $9.
2006-09-14 13:26:23 · answer #1 · answered by Puzzling 7 · 0⤊ 0⤋
$15
2006-09-14 13:21:43 · answer #2 · answered by Dustin K 2 · 0⤊ 1⤋
i began out as a physique chippie in 1972 and am now a homebuilder. the information a pair of observed kerf is right. The question is imprecise as others recommend, to that end my solutions: If the observed kerf weren't a ingredient, the board ought to be cut back into 5 - 12" products and one 6" piece. So, in case you stated as the 12" products a "piece", then the 6" section may be a a million/2 piece. A strip of wood sixty six" long may be cut back into 5 products and a million -a million/2 piece, or 5 a million/2 products. From yet another perspecive: If the board is to be cut back into 5 a million/2 products, yet as a seperate ingredient, somebody is looking how many products may be cut back, then the respond may be desperate by ability of how many circumstances you could effectively cut back the board. If that's cut back with a razor blade, then the ultimate answer may be hundreds or tens of millions. This brings me to a various question: in case you chop back a around pizza into quarters, or 4 equivalent products, and cut back between the quarters in a million/2, might the end results of the cut back piece yield 2 products of pizza or 2 a million/2 products of pizza?
2016-10-15 00:24:10 · answer #3 · answered by swett 4 · 0⤊ 0⤋
Open two links, use each to join the remaining sections of chain, and weld them shut again. Cost, $6.
2006-09-14 13:20:54 · answer #4 · answered by Anonymous · 1⤊ 1⤋
11 dollars
5 x 2= 10 (to weld the pieces close)
1 x 1= 1 (to open one link and connect it to the other end)
i hope i helped!
2006-09-14 13:21:45 · answer #5 · answered by skateme 3 · 0⤊ 2⤋
$9, open one link insert two links, you spent $3 and have three links, know open both of the links you just inserted, total cost $5, insert two more links, close the know open links, total spent $9
2006-09-14 13:30:08 · answer #6 · answered by Goosecock 2 · 0⤊ 0⤋
15 dollars
2006-09-14 13:22:01 · answer #7 · answered by aj 2 · 0⤊ 1⤋
Yup I would agree $ 6.00
2006-09-14 13:22:40 · answer #8 · answered by lisapj 3 · 0⤊ 1⤋
$15...i think!
2006-09-14 13:39:58 · answer #9 · answered by confuzzed.. 2 · 0⤊ 0⤋
My guess would be, $24.00?
2006-09-14 13:24:08 · answer #10 · answered by honeypie1998 1 · 0⤊ 1⤋