Problems from Another Time

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

A merchant bought 50,000 pounds of pepper in Portugal for 10,000 scudi and paid a tax of 500 scudi.

In a square box that contains 1000 marbles, how many will it take to reach across the bottom of the box in a straight row?

Dimensions of a Triangle

Determine the dimensions for a right-angled triangle, having been given the hypotenuse, and the side of the inscribed square.

University Payment Plan

A merchant gave a university 2,814 ducats on the understanding that he was to be paid back 618 ducats per year for 9 years, at the end of which the 2,814 ducats should be considered as paid.

Logarithms: The Early History of a Familiar Function - About the Authors and More Information on Sources

The authors recount the 'great tale' of Napier's and Burgi's parallel development of logarithms and urge you to use it in class.

Silver and Gold

There are two piles, one containing 9 gold coins, the other 11 silver coins.

Coins

A boy gives 11 coins of equal denomination to a man, and the man finds that their total value in yen is 4 less than his age.

Looking for Bargains

One says that 10 garments were purchased by two men at a price of 72 dirhams. The garments varied in value. The price of each garment of one man is 3 dirhams more than the price for each garment of the other. How many garments did each man buy?

'He Advanced Him 200 Lambs of Gold': The Pamiers Manuscript - Proportionality Techniques

Discussion of 15th century French manuscript, with translation of its problems, including one with negative solutions

Log Stuck in a Wall

Now given a cylindrical log of unknown size buried in a wall...