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Problems from Another Time

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

If 12 cattle eat up 3 1/3 acres of meadow in 4 weeks and 21 cattle eat up 10 acres of exactly similar meadow in 9 weeks, how many cattle shall eat up 36 acres in 18 weeks? (Hint: The grass continues to grow.)
The authors recount the 'great tale' of Napier's and Burgi's parallel development of logarithms and urge you to use it in class.
In how many ways can a vowel and a consonant be chosen out of the word "logarithms?"
If a ball 6 inches in diameter weighs 32 lbs, what will be the weight of a ball 3 inches in diameter?

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