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Problems from Another Time

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

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?
I wish to find three numbers of such nature that the first and the second with 1/2 of the third makes 20...
An old Chinese general led his army to a river with a steep bank. Standing atop the bank, he held a stick 6 feet long perpendicular to himself.
The authors recount the 'great tale' of Napier's and Burgi's parallel development of logarithms and urge you to use it in class.
Make a crown of gold copper, tin, and iron weighing 60 minae: gold and copper shall be 2/3 of it; gold and tin, 3/4 of it; and gold and iron, 3/5 of it. Find the required weights of gold, copper, tin, and iron.
Three people buy wood together. One pays the merchant 5 coins, another 3 coins, and the last 2 coins.
If a ladder, placed 8 ft. from the base of a building 40 ft. high, just reached the top, how far must it be placed from the base of the building that it may reach a point 10 ft. from the top?
Discussion of 15th century French manuscript, with translation of its problems, including one with negative solutions
Assume that the human population after the flood was 6 and that 200 years later the population was 1,000,000. Find the annual growth of the population.
Find two numbers such that multiplying one by the other makes 8 and the sum of their squares is 27.

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