Find number abc
[7436] Find number abc - If 88502 + bb0b8 = ca5580 find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 4
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Find number abc

If 88502 + bb0b8 = ca5580 find number abc. Multiple solutions may exist.
Correct answers: 4
#brainteasers #math
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The doctor answered the phone...

The doctor answered the phone and heard the familiar voice of a colleague on the other end of the line. "We need a fourth for poker," said the friend.
"I'll be right over," whispered the doctor.
As he was putting on his coat, his wife asked, "Is it serious?"
"Oh yes, quite serious," said the doctor gravely. "In fact, there are three doctors there already!"
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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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