# Convergence articles

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What proportions of sugar at 8 cents, 10 cents and 14 cents per pound, will compose a mixture worth 12 cents per pound?

An elementary introduction to Euler squares and how they can be used in teacher training

There is a lion in a well whose depth is 50 palms. He climbs and slips back a certain amount each day. In how many days will he get out of the well?
An extension of Al-Karaji's formula for the sum of the cubes by a 19th century Turkish author and journal editor
One says that 10 garments were purchased by two men at a price of 72 dirhams. The garments varied in value. The price of each garment of one man is 3 dirhams more than the price for each garment of the other. How many garments did each man buy?
The earliest known example of a printed book on arithmetic, dates to 1478. Also known as the Art of Calculation.
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?
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.
Two travelers, starting at the same time from the same point, travel in opposite directions round a circular railway.