A gentleman has bought a rectangular piece of land whose perimeter is to be 100 rods; and he is to pay 1 dollar for each rod in the length of the land and 3 dollars for each rod in the breath of the land.

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

How long does it take a single man to do work when...

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

In a circle whose circumference is 60 units, a chord is drawn forming a segment whose sagitta is 2 units. What is the length of the chord?

Find two numbers such that multiplying one by the other makes 8 and the sum of their squares is 27.

Find the height of a window.

A man entered an orchard through 7 gates, and there took a certain number of apples. When he left the orchard, he gave the first guard half the apples he had and 1 apple more.

Find two numbers, x and y, such that their sum is 10 and x/y + y/x = 25

What is the sum of the reciprocals of the triangular numbers?

My age is a number consisting of two digits, 1/2 of this number is a mean proportional between these two digits, and two years hence, my age will be a third proportional to the same two digits, directly as they stand in my present age.