Calculate the number 8427
[1263] Calculate the number 8427 - NUMBERMANIA: Calculate the number 8427 using numbers [3, 9, 3, 8, 91, 950] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 29 - The first user who solved this task is Sanja Šabović
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Calculate the number 8427

NUMBERMANIA: Calculate the number 8427 using numbers [3, 9, 3, 8, 91, 950] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 29
The first user who solved this task is Sanja Šabović.
#brainteasers #math #numbermania
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Mr. Jones is driving past the...

Mr. Jones is driving past the state mental hospital when his left rear tire suffers a flat. While he is changing the tire, another car goes by, running over the hub cap in which he was keeping the lug nuts. The nuts are all knocked into a nearby storm drain.
He is at a loss for what to do and is about to go call a cab when he hears a shout from behind the hospital fence, where one of the inmates has been watching the whole thing.
"Hey, pal! Why don't you just take one lug nut off each of the other three wheels and use them to replace the missing ones? That'll hold your tires on until you can get to a garage or something."
Mr. Jones is startled by the patient's seeming rationality, but realizes the plan will work, and installs the spare tire without incident. Before he leaves, he calls back to the patient. "You know, that was pretty sharp thinking. Why do they have you in there?"
The patient smiles and says, "I'm in here because I'm crazy, not because I'm stupid."
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Alkali Works Act pollution control

In 1863, the Alkali Works Act was passed in Britain, effective 1 Jan 1864, to limit the extensive environmental damage caused by atmospheric pollution from industrial alkali works in the English counties of Lancashire and Cheshire. The Act successfully enforced “the more effectual condensation of muriatic acid gas” (hydrochloric acid, HCl). In the era before electrolysis, alkali was manufactured by reacting salt with sulphuric acid, which produced HCl gas as an unwanted byproduct, released from tall chimneys intended to disperse the noxious vapours by dilution over a wide area. So this severely damaged the vegetation in a wide area. Buildings and iron structures were corroded. In the 1840s in the Merseyside area alone, an estimated 60,000 tons of the pollutant was released. The Act required a 95% reduction.«
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