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A barrel has various holes in it. The fist hole empties the barrel in three days...
An extension of Al-Karaji's formula for the sum of the cubes by a 19th century Turkish author and journal editor
A man agreed to pay for 13 valuable houses worth $5000 each, what the last would amount to, reckoning 7 cents for the first, 4 times 7 cents for the second, and so on, increasing the price 4 times on each to the last.
The earliest known example of a printed book on arithmetic, dates to 1478. Also known as the Art of Calculation.
The work of the great Renaissance artist/scientist Leonardo da Vinci can be taught in secondary schools through an integrated approach of several disciplines. This article explores the approach of the Ross School.
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?
Two men brought their fish through customs. Find how much the fish cost, and what is the customs fee.
This conference takes place in 2006 at Pennsylvania State University, Erie.
A square walled city measures 10 li on each side. At the center of each side is a gate. Two persons start walking from the center of the city.

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