However, castle regulations state that each visitor may carry only one item of luggage.
You are here with one companion, and you are a three-minute walk from where the king is located.
How many minutes will it take to show the king all of the treasure chests?
One chest counts as one item of luggage.
If you take five treasure chests to the king, it would take two of you two and a half return journeys.
There is a quicker way, though.
Only one of you needs to go to the king.
You don't have to take the treasure chests with you.
You can ask the king to do his bit.
If you brought the king to the treasure chests rather than the other way around, how many round trips would you need to make?
The answer is '6'.