How it happens that the queue to the women’s toilet is always so long



The phenomenon was encountered mainly by the guests of big events. This is particularly evident during the summer period, when many festivals, concerts, sports events or events take place in the series of City Days, i.e. events during which one hectolitre of beer, which is known to be extremely diuretic, is sold. The issue turned out to be so interesting that it was discussed by an international group of scientists. What conclusions did they reach? The Americans did not discover the solution of the puzzle from the beginning seemed obvious.
The queue for a women’s toilet is always longer for one simple reason – the ladies simply stay longer, in a place where even the king walks on foot. According to an international study conducted under the leadership of Professor Alexander Kir of Cornell University, women spend almost two and a half times as much time in the toilet as men. Many may think that this could be the end of the story. However, it is not that simple. It turns out that 2.3 times longer time in the toilet does not translate into the fact that the queues to the female toilet are 2.3 times longer than those to the male. This was proven by one of the editors of the Focus magazine in 2000.
For this purpose, he used mathematical theory, which is called the queue theory. Thanks to it, the editor justified the truthfulness of the mathematical principle, which he gave the name to the law of nuisance. According to him, if one queue moves X times slower than the other, it will be at least X to the square, that is to the power of the other, times longer and people will wait in it an average of X to the square longer. It follows that a 2.3 to square queue can be expected for a women’s toilet, in other words, about five times longer than a men’s queue. What is the solution to an issue that has been troubling many for a long time? It is very simple: there should be 2.3 times more women’s toilets than men’s ones.
The law of nuisance can also be applied to other everyday situations. It explains perfectly why some supermarket checkout queues are much longer than others. Well, if the cashier is X times slower than the average time of service – let’s say, because of little experience – the queue standing for the cash register she is servicing will be X to square times longer. This means that if a newly recruited employee who is not yet skilled is only 25 percent slower than her experienced colleague, the queue at her checkout will be more than half the time.
However, if you are humanists and do not like the mathematical justifications of certain phenomena, and you are just standing in line with the cash register, which is moving extremely slowly, you can base your explanation on the pessimistic Murphy law, which says that the second queue is always faster.

How it happens that the queue to the women’s toilet is always so long
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