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Problems from Another Time

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

If two Post-boys, A and B at 59 miles distance from one another, set out in the morning in order to meet...
A fox, a raccoon, and a hound pass through customs and together pay 111 coins.
Determine the radii of three equal circles decribed within and tangent to a given circle, and also tangent to each other
Discussion of 15th century French manuscript, with translation of its problems, including one with negative solutions
The radius of a circle is 3.20 meters. Compute to within .001m the areas of the inscribed and circumscribed equilateral triangles.
Given right triangle ABC where C is the right angle, ellipse O (a,b) is inscribed in it, with its major axis parallel to BC. Calculate the semi-major axis, a, in terms of AC, BC and b.
If in a circle ABDC, circumscribe an equilateral triangle ABC; the straight line AD is equal to the sum of the two straight lines BD and DC: required a demonstration.
A cat sitting on a wall 4 cubits high saw a rat prowling 8 cubits from the foot of the wall;
The perimeters of two similar triangles are 45 and 135 respectively. One side of the first triangle has length 11″ and a second side, 19″. Find the lengths of the sides of the second triangle.
What is the value of X...