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Problems from Another Time

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

There is a round town 8000 feet in circumference.
What is the perpendicular height of a cloud when its angles of elevation were 35 degrees and 64 degrees as taken by two observers at the same time...
How a translation of Peano's counterexample to the 'theorem' that a zero Wronskian implies linear dependence can help your differential equations students
When knowing the sum of their ages along with another equation, determine how old a father and son are.
Now there are six-headed four-legged animals and four-headed two-legged birds placed together.
Discussion of 15th century French manuscript, with translation of its problems, including one with negative solutions
A California miner has a spherical ball of gold, 2 inches in diamter, which he wants to exchange for spherical balls 1 inch in diameter. How many of the smaller spheres should he receive?
Two men brought their fish through customs. Find how much the fish cost, and what is the customs fee.
The sum of two numbers is 10 and their product is 40. What are the numbers?
It is required to determine whether 30 horses can be put into 7 stalls; so that in every stall there may be, either a single horse, or an odd number of horses.

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