mmh ok thanks, i guess i need extra maths training ;)

i didn't mean knowing _that_ the range is between 4 and 6 but _why_, i thought the weighing would be explained by the reasoning, like: "we divide a €100 bill between possibly 4, rather 5 and most probably not 6 persons"

>but _why_

Because that is how it is defined by the author of the article.