thin king

Hi,

A good brain can get rusty if it is not regularly exercised.

This is a good puzzle, easy to understand but difficult to solve.

After the celebration, the host found that there was some fine wine left, exactly enough to fill a 6 litre vessel. He wanted to give this wine to his two servants equally, but he had only two other vessels with known capacity to measure it. The two vessels can each contain 2.5 litres and 4 litres respectively. It was quite a task, but being a fair man he finally found a way to give 3 litres to both the servants.
How did he do it ?

In case the brain does not wish to work at the moment or needs a rest,
the answer is as follows:

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Fill the medium 4l vessel, and leave the remainder 2 litres in the large 6l vessel.

Fill the empty 2.5l vessel from the medium 4l vessel, leaving 1.5 litre in the medium vessel;
the small vessel will contain 2.5 litres, the medium 1.5 litre, and the large vessel 2 litres.

Pour the 2.5 litres from the small vessel into the large vessel, and empty the medium vessel into the small vessel;
the small one will contain 1.5 litres, the medium one empty and the large one 4.5 litres.

Fill the medium vessel from the large one, leaving 0.5 litre in the large one;
now the small one will have 1.5 litres, the medium 4 litres and the large one 0.5 litre.

Top up the small vessel from the medium vessel,
leaving 3 litres there and 2.5 litres in the small one.

Empty the small vessel into the large one and that is the job well done;
the medium and large vessels will each contain 3 litres.

Have a nice day
Ronald