Calculate the number 621
[6456] Calculate the number 621 - NUMBERMANIA: Calculate the number 621 using numbers [7, 5, 2, 5, 31, 138] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 11 - The first user who solved this task is Nílton Corrêa de Sousa
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Calculate the number 621

NUMBERMANIA: Calculate the number 621 using numbers [7, 5, 2, 5, 31, 138] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 11
The first user who solved this task is Nílton Corrêa de Sousa.
#brainteasers #math #numbermania
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Insurance

Larry's barn burned down and his wife, Susan, called the insurance company.

Susan told the insurance company, "We had that barn insured for fifty thousand and I want my money."

The agent replied, "Whoa there, just a minute, Susan. Insurance doesn't work quite like that. We will ascertain the value of what was insured and provide you with a new one of comparable worth."

There was a long pause before Susan replied, "Then I'd like to cancel the policy on my husband."

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Gatling gun patent

In 1865, a U.S. patent was issued to Richard Jordan Gatling for the Gatling gun, invented 1861, which was the first to successfully combine reliability, high firing rate and ease of loading into a single device (No. 47,631), which he in the patent description, he called a "battery-gun." The gun was a hand-cranked to rotate a cylinder of ten barrels. Each loaded from a gravity-feed magazine on top and fired on each revolution. He was motivated to invent the weapon after he noticed the majority of dead returning from the American Civil War died of illness, rather than gunshots. He thought if a rapid-firing gun could enable one man to do what previously required many, then armies could be smaller, saving men from exposure to battle and disease.«
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