There were two men, of whom the first had 3 small loaves of bread and the other, 2.

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

There were two men, of whom the first had 3 small loaves of bread and the other, 2.

A man bought a number of sheep for $225; 10 of them having died, he sold 4/5 of the remainder for the same cost and received $150 for them. How many did he buy?

Prove geometrically that the hypocycloid is a straight line when the radius of the rolling circle is one-half the radius of the fixed circle.

The third part of a necklace of pearls, broken in a lover's quarrel, fell to the ground...

Suppose a man had put out one cent at compound interest in 1620, what would have been the amount in 1824, allowing it to double once in 12 years?

A circle, a square and an equilateral triangle all have the same perimeter equal to 1 meter. Compare their areas.

Given the fraction ax/ (a-x ), convert it into an infinite series.

A two door gate of unknown width is opened so that a 2 inch gap exists between the two doors.

Gun metal of a certain grade is composed of 16% tin and 84% copper. How much tin must be added to 410 lbs. of this gun metal to make a composition of 18% tin?

Now there are six-headed four legged animals and four-headed two-legged birds. Find the total number of animals and birds.