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There is a clothing store in...

There is a clothing store in Bartlesville. The owner has devised his own method of pricing items. A vest costs $20, socks cost $25, a tie costs $15 and a blouse costs $30. Using the method, how much would a pair of underwear cost?

Correct answers: 50

The first user who solved this task is H Tav.

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Confident and confidential

Son - "Dad whats the difference between confident and confidential?"

Dad - "Hmm. You are my son. Of that I am confident. Your friend Timmy is also my son. That's confidential."

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Fourier series

In 1807, Fourier's memoir On the Propagation of Heat in Solid Bodies, was read to the Paris Institute, an important mathematical work, containing what we now call Fourier series, which he had worked upon since around 1804. A committee consisting of Lagrange, Laplace, Monge and Lacroix was set up to report on the work. Although now highly regarded, at the time, this memoir caused controversy. Lagrange and Laplace objected to Fourier's expansions of functions as trigonometrical series (the Fourier series). It was not until 1822 that his prize winning essay Théorie analytique de la chaleur was published by the Académie des Sciences. Jean Delambre, Secretary to the mathematical section, had arranged for the printing before he died.

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