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Title page from the Ars Magna, by Gerolamo Cardano, published in 1545. Engraved portrait of the author. First printed text of algebraic solution of cubic equations.
One says that 10 is divided into three parts and if the small part is multiplied by itself and added to the middle one multiplied by itself the result is the large one multiplied by itself...
Two bicyclists travel in opposite directions around a quarter-mile track and meet every 22 seconds. When they travel in the same direction on this track, the faster passes the slower once every 3 minutes and 40 seconds. Find the rate of each rider
Given a guest on horseback rides 300 li in a day. The guest leaves his clothes behind. The host discovers them after 1/3 day, and he starts out with the clothes.
If in a circle ABDC, circumscribe an equilateral triangle ABC; the straight line AD is equal to the sum of the two straight lines BD and DC: required a demonstration.
Now there is a wall 5 feet thick and two rats tunnel from opposite sides.
This resource consists of a series of 61 worksheets, each focused on a particular problem and related to a particular historical mathematical personality.
Page 7, Who's That Mathematician: Images from the Paul R. Halmos Photograph Collection: Blackwell, Halmos, Boas, Bollobas, Bombieri, Mumford, Bonsall, Rankin
This is a page from the Rechenbuch of Adam Riese. It deals with the measurement of barrels. Also a page that has a table showing numbers both in German words, in Roman numerals, and in the Hindu-Arabic numerals.
Given four integers where if added together three at a time their sums are: 20, 22, 24, and 27. What are the integers?

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