Calculate the number 613
[6170] Calculate the number 613 - NUMBERMANIA: Calculate the number 613 using numbers [2, 8, 9, 4, 39, 538] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 17 - The first user who solved this task is Nílton Corrêa de Sousa
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Calculate the number 613

NUMBERMANIA: Calculate the number 613 using numbers [2, 8, 9, 4, 39, 538] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 17
The first user who solved this task is Nílton Corrêa de Sousa.
#brainteasers #math #numbermania
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Dov Davidoff: Dressing Up Like a Referee

I like to dress up as a referee and walk into a Foot Locker. You gotta try this. It freaks them out. They get all insecure. The guys like, Wait a second, can I help you? I was like, Can I help you, man? I, too, am a referee. Maybe we could work it out together. And then someone will ask me for a size 10, and Ill be like, Do I look like I work here, chief?
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Escalator

In 1892, George A. Wheeler, of New York City, patented ideas for the first practical moving staircase, though it was never built (U.S. No. 479864). Some of its features were incorporated in the prototype built by the Otis Elevator Company in 1899. Charles D. Seeberger coined the brand name Escalator (from scala, Latin for steps, with elevator). Seeberger with Otis installed the first step-type escalator made for public use at the Paris Exhibition of 1900, where it won first prize. Seeberger eventually sold his patent rights to Otis in 1910. The earliest type of escalator, patented in 1891 by Jesse W. Reno, was introduced as a new novelty ride at Coney Island moving passengers on a conveyor belt at an angle of 25 degrees.[Image: Artist's impression of escalators for a computer graphic.]
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