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Convergence articles

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A lady being asked how old she was at the time of her marriage replied that the age of her oldest son was 13; that he was born 2 years after her marriage...
A speculator bought stock at 25% below par and sold it at 20% above par. He gained $1560. How much did he invest?
The answer to the following question is obtained using as optimum strategy-the farmer is getting the "best deal" possible. Can you figure out the solution strategy?...
Instructions that apply to Convergence but not necessarily to other areas of Loci
The history of the four color problem with sketches of the attempted proofs in the nineteenth century and an outline of the computer proof of the twentieth century.
A copper water tank in the form of a rectangular parallelopiped is to made. If its length is to be a times its breadth, how high should it be that for a given capacity it should cost as little as possible?
A square walled city of unknown dimensions has four gates, one at the center of each side.
Original source material from seventeen mathematicians, with commentary by Stephen Hawking.
If 80 dollars worth of provisions will serve 20 men for 25 days, what number of men will the same amount of provisions serve for 10 days?
In this fascinating and accessible book, the author devotes one lively, informative page of description and one striking, full-page illustration to each of 250 milestones in mathematics.

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Dummy View - NOT TO BE DELETED