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Problems from Another Time

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

I was employed to survey a field, which I was told was an exact geometrical square, but by reason of a river running through it, I can only obtain partial measurements.
The authors recount the 'great tale' of Napier's and Burgi's parallel development of logarithms and urge you to use it in class.
A ladder has 100 steps. On the first step sits 1 pigeon; on the second, 2; on the third, 3; and so on up to the hundredth. How many pigeons in all?
Two travelers, starting at the same time from the same point, travel in opposite directions round a circular railway.
A teacher agreed to teach 9 months for $562.50 and his board. At the end of the term, on account of two months absence caused by sickness, he received only $409.50. What was his board worth per month?
Discussion of 15th century French manuscript, with translation of its problems, including one with negative solutions
Find the isoceles triangle of smallest area that circumscribes a circle of radius 1.
A wooden beam is stood vertically against a wall. The length of the beam is 30 units.
In a right triangle, the hypotenuse is 9.434 and the sum of the sides around the right angle is 13. Find the lengths of the sides around the right angle.
Four men already having denari found a purse of denari; each man has a different amount of denari before they found the purse. Find out how much denari each man has.