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Problems from Another Time

Individual problems from throughout mathematics history, as well as articles that include problem sets for students.

The sum of two numbers is 10 and their product is 40. What are the numbers?
The authors recount the 'great tale' of Napier's and Burgi's parallel development of logarithms and urge you to use it in class.
In baking a hemispherical loaf of bread of 10" radius, the crust was everywhere of an equal thickness, and the solidity of the crust was equal to half the solid content of the whole loaf. What were the dimensions of the interior soft part?
A fox, a raccoon, and a hound pass through customs and together pay 111 coins.
Given a triangular piece of land having two sides 10 yards in length and its base 12 yards, what is the largest square that can be constructed within this piece of land so that one of its sides lies along the base of the triangle?
Discussion of 15th century French manuscript, with translation of its problems, including one with negative solutions
What is the sum of the following series, carried to infinity: 11, 11/7, 11/49, etc.?
Curve sketching, tangent lines, and optimization, explored via interactive applets
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?
If a ball 6 inches in diameter weighs 32 lbs, what will be the weight of a ball 3 inches in diameter?

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