Calculate the number 5389
[6017] Calculate the number 5389 - NUMBERMANIA: Calculate the number 5389 using numbers [7, 7, 1, 7, 27, 750] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 9 - The first user who solved this task is Nílton Corrêa de Sousa
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Calculate the number 5389

NUMBERMANIA: Calculate the number 5389 using numbers [7, 7, 1, 7, 27, 750] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 9
The first user who solved this task is Nílton Corrêa de Sousa.
#brainteasers #math #numbermania
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Bathtub

It doesn't hurt to take a hard look at yourself from time to time, and this should help get you started.
During a visit to the mental asylum, a visitor asked the director what the criterion was that defined whether or not a patient should be institutionalized.
"Well," said the Director, "we fill up a bathtub, then we offer a teaspoon, a teacup and a bucket to the patient and ask him or her to empty the bathtub."
"Oh, I understand," said the visitor. "A normal person would use the bucket because it's bigger than the spoon or the teacup."
"No," said the Director, "A normal person would pull the plug. Do you want a room with or without a view?"

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Edison patents

In 1914, three patents related to a “"Phonograph-Reproducer” were issued to Thomas A. Edison (U.S. Nos. 1,099,346; -8) and also a patent for a “Method of Making Sound-Record Molds” (No.1,099,349). The phonograph reproducers were designed to have an improved mounting for the stylus lever to provide the necessary freedom of movement in tracking the grooves of a sound record. To allow the stylus to better follow the contour of the record groove, its mounting allowed movement in both vertical and transverse directions. The design consisted of various combinationd of a diaphragm, a floating weight, a stylus on a movement-amplifying lever and a sound box body. The method of making sound-record molds dealt with the manufacturing process of the pressing of flat disk records.«
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