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Problems from Another Time

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

Determine the dimensions for a right-angled triangle, having been given the hypotenuse, and the side of the inscribed square.
Three equal circumferences with radii 6" are tangent to each other. Compute the area enclosed between them.
Discussion of 15th century French manuscript, with translation of its problems, including one with negative solutions
What will the diameter of a sphere be, when its volume and surface area are expressed by the same number?
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.
A man has four creditors. To the first he owes 624 ducats; to the second, 546; to the third, 492; and to the fourth 368.
There were two men, of whom the first had 3 small loaves of bread and the other, 2.
A man bought a number of sheep for $225; 10 of them having died, he sold 4/5 of the remainder for the same cost and received $150 for them. How many did he buy?
What proportions of sugar at 8 cents, 10 cents and 14 cents per pound, will compose a mixture worth 12 cents per pound?
A barrel has various holes in it. The fist hole empties the barrel in three days...