Find number abc
[6676] Find number abc - If c4ab5 + c75b1 = 171cab find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 23 - The first user who solved this task is Nasrin 24 T
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Find number abc

If c4ab5 + c75b1 = 171cab find number abc. Multiple solutions may exist.
Correct answers: 23
The first user who solved this task is Nasrin 24 T.
#brainteasers #math
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You've all heard of the Air F...

You've all heard of the Air Force's ultra-high-security, super-secret base in Nevada, known simply as "Area 51"?
Well, late one afternoon, the Air Force folks out at Area 51 were very surprised to see a Cessna landing at their "secret" base. They immediately impounded the aircraft and hauled the pilot into an interrogation room.
The pilot's story was that he took off from Las Vegas, got lost, and spotted the Base just as he was about to run out of fuel. The Air Force started a full FBI background check on the pilot and held him overnight during the investigation.
By the next day, they were finally convinced that the pilot really was lost and wasn't a spy. They gassed up his airplane, gave him a terrifying "you-did-not-see-a-base" briefing, complete with threats of spending the rest of his life in prison, told him Las Vegas was that-a-way on such-and-such a heading, and sent him on his way.
The next day, to the total disbelief of the Air Force, the same Cessna showed up again. Once again, the MP's surrounded the plane ... only this time there were two people in the plane.
The same pilot jumped out and said, "Do anything you want to me, but my wife is in the plane and you have to tell her where I was last night!"
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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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