Sameer needs a long iron chain with at least 15 links. But instead of a long chain he found 5 chains with 3 links each. Sameer decided to use those 5 chains to form a long chain. In order to do that, he needs to open and then weld the links. Opening a link costs $1 and welding a link costs $3.
What is the minimum amount Sameer has to spend to make the long chain?
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NetPoll | Sameer needs a long iron chain with at least 15 links. But instead of a long chain he found 5 chains with 3 links each. Sameer decided to use those 5 chains to form a long chain. In order to do that, he needs to open and then weld the links. Opening a link costs $1 and welding a link costs $3.
What is the minimum amount Sameer has to spend to make the long chain? https://netpoll.in/HW80UX2Z1K