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Problems from Another Time

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

A boy gives 11 coins of equal denomination to a man, and the man finds that their total value in yen is 4 less than his age.
There were two men, of whom the first had 3 small loaves of bread and the other, 2.
Discussion of 15th century French manuscript, with translation of its problems, including one with negative solutions
A fish sees a heron looking at him from across a pool, so he quickly swims towards the south. When he reaches the south side of the pool, he has the unwelcome surprise of meeting the heron.
What proportions of sugar at 8 cents, 10 cents and 14 cents per pound, will compose a mixture worth 12 cents per pound?
Fibonacci gave a practical rule for approximating the area of an equilateral triangle.
A man and his wife drink a barrel of wine at different rates. Find the rate it takes both of them together to drink the wine.
The dimensions of a rectangular box in inches are expressed by three consecutive numbers. The surface of the box is 292 square inches. Find the dimensions.
Having been given the sum of two numbers,a, and the difference of their squares,b, find the numbers.
Given two circle tangent at the point P with parallel diameters AB, CD, prove that APD and BPC are straight lines.

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