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A guest on horseback rides 300 li in a day. The guest leaves his clothes behind and the host rides off to catch up with the guest once he discovers the clothes. Assuming the host rides without stop tell how far he can go in a day?

An introduction to the prime numbers in many of their aspects.

Suppose that the propability of success in an experiment is 1/10. How many trials of the experiment are necessary to insure even odds on it happening at least once?
Two men have a certain amount of money. The first says to the second, "If you give me 5 denari, I will have 7 times what you have left."
What proportions of sugar at 8 cents, 10 cents and 14 cents per pound, will compose a mixture worth 12 cents per pound?

Images from Frans van Schooten's 1659 edition of The Geometry of Rene Descartes

Determine the greatest cylinder that can be inscribed in a given cone.
There are many historical sessions during the 2007 summer meeting of the Mathematical Association of America.
Posters illustrating mathematics concepts in such places as China, Japan, India, and the Americas.
I wish to find three numbers of such nature that the first and the second with 1/2 of the third makes 20...