Find number abc
[7735] Find number abc - If 57587 - 3c5b1 = a30ab find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 1
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Find number abc

If 57587 - 3c5b1 = a30ab find number abc. Multiple solutions may exist.
Correct answers: 1
#brainteasers #math
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Five Englishmen in an Audi Quattro rol...

Five Englishmen in an Audi Quattro roll up to an Irish border checkpoint. Paddy, the officer, halts them and sternly declares, "It's illegal to cram five people into a Quattro. 'Quattro' means four."
The Englishman, incredulous, retorts, "Quattro is just the name of the car! Check the papers: it's designed for five."
"You can't pull that one on me," replies Paddy. "Quattro means four. You've got five folks in there; it's against the law."
The Englishman, now irate, demands, "Get your supervisor! I need someone with more intelligence!"
Paddy quips back, "Sorry, Murphy's tied up with two blokes in a Fiat Uno.
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Safety lamp

In 1816, Sir Humphry Davy's safety lamp was first used in a coal mine. Deadly explosions had been a continual hazard caused by the flammable gas, methane, leaking out of the coal seams ignited by the flame of a miner's lamp. There had been previous attempts by others to make a safety lantern. Davy applied a scientific approach to determine the suitable fineness of wire gauze placed around the flame which would avoid ignition of flammable gas outside. He determined that the holes in the gauze should be less than 1/22 inch in diameter, and that the wire itself should be between 1/40 to 1/60 inch thick. Since the flame changed colour in the presence of methane, it also served as a warning to the miner to take protective action.«[Image: Davy safety lamp, circa 1816.]
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