# What Is The Minimum Cost To Make The Chain ?

+1 vote
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There are 5 metal rings... I want to join them and make a chain as shown in the image.

It involves cutting and welding(joining) the metal rings.

Cutting the ring cost \$10 for each cut. Welding the ring cost \$2 for each join. What is the minimum cost to make the chain ?

posted Mar 12, 2015

+1 vote

Minimum cost of making chain is = 24

becoz we break first ring and put second and third in first then cost = 10+2 = 12 \$
now break fourth one and put previous chain and fifth cost = 10+2 = 12 \$

``````                Total minimum cost  = 24 \$
``````

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