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Convergence articles

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To find three quantities x.y, and z...
A merchant woman buys and sells apples and pears for Denaros. How much did she invest in apples; how much in pears?
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.
Two ants are 100 paces apart, crawling back and forth along the same path. The first goes 1/3 pace forward a day and returns 1/4 pace; the other goes forward 1/5 pace and returns 1/6 pace. How many days before the first ant overtakes the second?
Given right triangle ABC where C is the right angle, ellipse O (a,b) is inscribed in it, with its major axis parallel to BC. Calculate the semi-major axis, a, in terms of AC, BC and b.

A bibliographical reference to mathematics books printed in the new world before 1700.

A translation of part of a thirteenth century work by the Byzantine monk Maximus Planudes on the Hindu-Arabic numerals and the algorithms for calculation.
Two men have a certain amount of money. The first says to the second, "If you give me 5 denari, I will have 7 times what you have left."
Prove that if the sums of the square opposite sides of any quadrilateral are equal, its diagonals interect at right angles.
What proportions of sugar at 8 cents, 10 cents and 14 cents per pound, will compose a mixture worth 12 cents per pound?

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