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Problems from Another Time

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

Now there is a wall 5 feet thick and two rats tunnel from opposite sides.
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?
How a translation of Peano's counterexample to the 'theorem' that a zero Wronskian implies linear dependence can help your differential equations students
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?
A tree 100 units high is 200 units distant from a well; from this tree one monkey climbs down and goes to the well...
What is the sum of the following series, carried to infinity: 11, 11/7, 11/49, etc.?
Discussion of 15th century French manuscript, with translation of its problems, including one with negative solutions
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?
What will the diameter of a sphere be, when its volume and surface area are expressed by the same number?
A man has four creditors. To the first he owes 624 ducats; to the second, 546; to the third, 492; and to the fourth 368.

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