There is a mound of earth in the shape of a frustum of a cone.

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

There is a mound of earth in the shape of a frustum of a cone.

A lady has two silver cups, and only one cover for both. The first cup weighs 16 oz, and when it is covered it weighs 3 times as much as the second cup; but when the second cup is covered, it weighs 4 times as much as the first.

Make of 10 three parts such that one part multiplied by 3 makes as much as the other multiplied by 4 and as the other multiplied by 5.

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

A gentleman has a garden of rectangular form and wants to construct a walk of equal width half way round to take up half the garden. What must be the width of this walk?

X, Y and Z hired a pasture for the season for $90.00. Each has a different number of mules and are on the pasture for a different number of days. How much is each to pay?

A horse, halving its speed each day, travels 700 miles in 7 days. How far does it travel each day?

Two cog-wheels, one having 26 cogs, and the other 20 cogs, run together. In how many revolutions of the larger wheel will the smaller gain in 12 revolutions?

A certain merchant increases the value of his estate by 1/3...

A barrel has various holes in it. The fist hole empties the barrel in three days...