A castle has n rooms each of which has 7 samurai in it.

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

A castle has n rooms each of which has 7 samurai in it.

Find two number with sum 20 and when squared their sum is 208.

What it took to get an 8th grade education in 1895

A lion, a wolf and a fox each take a certain amount of time to eat a goat separately. How long would it take all these animals together to eat the goat?

Given the cats eye as shown. Let the radius of the eye be given by R. What is the area of the pupil?

Three hundred pigs are to be prepared for a feast.

Three persons bought a sugar loaf in the form of a perfect cone 25"" high and agreed to divide it...what was the slant height of each one's share?

You have two sums of money, the difference of which is 2 dirhams; you divide the smaller sum by the larger and the quotient is equal to 1/2. What are the two sums of money?

The authors recount the 'great tale' of Napier's and Burgi's parallel development of logarithms and urge you to use it in class.

In one day, a person can make 30 arrows or fletch [put the feathers on] 20 arrows.