Tuesday, February 25, 2014

Q:
You have five pieces of chain, each consisting of three links.  You want to make one long chain of these five pieces.  Breaking open a link costs $1, and welding an open link costs $2.  What is the minimum amount you need to make the long chain?

You have five pieces of chain, each consisting of three links.

You want to make one long chain of these five pieces.

Breaking open a link costs $1, and welding an open link costs $2.

What is the minimum amount you need to make the long chain?

Answer : Show Me

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