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?

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

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.

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...

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?

Find the greatest value of y in the equation a4 x2= (x2 + y2)3.

A square walled city of unknown dimensions has four gates, one at the center of each side.

A rifle ball is fired through a three-inch plank, the resistance of which causes an unknown constant retardation of its velocity.