To find three quantities x.y, and z...

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

To find three quantities x.y, and z...

What is the perpendicular height of a cloud when its angles of elevation were 35 degrees and 64 degrees as taken by two observers at the same time...

When knowing the sum of their ages along with another equation, determine how old a father and son are.

There are two numbers which are to each other as 5 and 6 and the sum of their squares is 2196. What are the numbers?

Suppose a ladder 60 feet long is placed in a street so as to reach a window 37 feet above the ground on one side of the street...

A California miner has a spherical ball of gold, 2 inches in diamter, which he wants to exchange for spherical balls 1 inch in diameter. How many of the smaller spheres should he receive?

The sum of two numbers is 10 and their product is 40. What are the numbers?

Twenty-three weary travelers entered a delightful forest. There they found 63 numerically equal piles of plantain fruit.

In how many ways can a vowel and a consonant be chosen out of the word "logarithms?"

It is required to determine whether 30 horses can be put into 7 stalls; so that in every stall there may be, either a single horse, or an odd number of horses.