# Problems from Another Time

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

The edge of a cloud is at an altitude of 20 degrees and the sun above it at 35 degrees. The shadow cast by the edge of the cloud fall on a object 2300 yards away, how high is the cloud?
A tree 100 units high is 200 units distant from a well; from this tree one monkey climbs down and goes to the well...
A lady has two silver cups, and only one cover for both. The first cup weighs 16 oz, and when it is covered it weighs 3 times as much as the second cup; but when the second cup is covered, it weighs 4 times as much as the first.
Discussion of 15th century French manuscript, with translation of its problems, including one with negative solutions
Make of 10 three parts such that one part multiplied by 3 makes as much as the other multiplied by 4 and as the other multiplied by 5.
What will the diameter of a sphere be, when its volume and surface area are expressed by the same number?
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.
X, Y and Z hired a pasture for the season for $90.00. Each has a different number of mules and are on the pasture for a different number of days. How much is each to pay? 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?
A horse, halving its speed each day, travels 700 miles in 7 days. How far does it travel each day?