Calculate the number 779
[1071] Calculate the number 779 - NUMBERMANIA: Calculate the number 779 using numbers [9, 7, 5, 8, 20, 689] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 33 - The first user who solved this task is Sanja Šabović
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Calculate the number 779

NUMBERMANIA: Calculate the number 779 using numbers [9, 7, 5, 8, 20, 689] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 33
The first user who solved this task is Sanja Šabović.
#brainteasers #math #numbermania
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Mind Telling Me The Time?

BLONDE: "Excuse me, what time is it right now?"
WOMAN: "It's 11:25PM."
BLONDE: (confused look on face) "You know, it's the weirdest thing, I've asked that question thirty times today, and every time someone gives me a different answer."
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Cash register

In 1879, James Jacob Ritty (1837-1918) with help from his brother John invented the first cash register, intended to combat stealing by bartenders in the Pony House Restaurant, his Dayton, Ohio saloon. His idea came on a cruise, when he saw a device that counted the revolutions of the ship's propeller. Their first model looked like a clock, but instead of the hands indicating hours and minutes, they indicated dollars and cents. Behind the dial two adding discs accumulated the total of the amounts recorded. Known as "the incorruptible cashier," with no cash drawer, it would show anyone within sight how much had been recorded. However, the Ritty brothers failed to sell their cash registers in large quantities - largely because shop staff distrusted this "thief trap".[Image: Model of the Ritty brothers' first cash register]
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