Problems from Another Time

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

There are four companies, in one of which there are 6 men, in another 8, and in each of the remaining two, 9 men. How many ways can a committee of 4 men be composed by choosing one man from each company?

IOU

I owe a man the following notes: one of $800 due May 16; one of $660 due on July 1; one of $940 due September 29. He wishes to exchange them for two notes of $1200 each and wants one to fall due June 1. When should the other be due?

'He Advanced Him 200 Lambs of Gold': The Pamiers Manuscript - Appendix B: Solutions

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