Now a pile of rice is against a wall, it has a base perimeter of 60 feet and a height of 12 feet.

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

Now a pile of rice is against a wall, it has a base perimeter of 60 feet and a height of 12 feet.

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.

What number which being increased by 1/2, 1/3, and 1/4 of itself, the sum shall be 75?

A gentleman has bought a rectangular piece of land whose perimeter is to be 100 rods.

Seven men held equal shares in a grinding stone 5 feet in diameter. What part of the diameter should each grind away?

Given a pyramid 300 cubits high, with a square base 500 cubits to a side, determine the distance from the center of any side to the apex.

A copper water tank in the form of a rectangular parallelopiped is to made. If its length is to be a times its breadth, how high should it be that for a given capacity it should cost as little as possible?

A ladder is placed perpendicular to the plane of the horizon, and in coincidence with the plane of an upright wall.

In a rectangle, having given the diagonal and perimeter, find the sides