Question 154
In Zé's workshop, there are six pieces of chains with the following number of links: $10, 10, 8, 8, 5$ e $2$. He needs to join these pieces to form a circular chain. He spends 1 minute to cut a link and 2 minutes to join it, making a total of 3 minutes per link. If he cuts a link at the end of each separate piece, joining the pieces one at a time, it would take $6 \cdot 3 = 18$ minutes. However, as he is in a hurry, he intends to carry out this operation more quickly.
a) Tell how it can form the circular current by taking just 15 minutes.
b) Is it possible for him to perform such an operation in less than 15 minutes?
a) Tell how it can form the circular current by taking just 15 minutes.
b) Is it possible for him to perform such an operation in less than 15 minutes?