Find number abc
[5447] Find number abc - If 317a3 - 1b9b3 = 2bcab find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 81 - The first user who solved this task is Djordje Timotijevic
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Find number abc

If 317a3 - 1b9b3 = 2bcab find number abc. Multiple solutions may exist.
Correct answers: 81
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math
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Martini

A fellow came into a bar and ordered a martini. Before drinking it, he removed the olive and carefully put it into a glass jar. Then he ordered another martini and did the same thing. After an hour, when he was full of martinis and the jar was full of olives, he staggered out.
"Well," said a customer, "I never saw anything as peculiar as that!"
"What's so peculiar about it?" the bartender said. "His wife sent him out for a jar of olives."    

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Charles Martin Hall

Born 6 Dec 1863; died 27 Dec 1914 at age 51.American chemist who invented the inexpensive electrolytic method of extracting aluminium from its ore, enabling the wide commercial use of this metal. While a young chemist, he experimented in a woodshed, intent upon finding a method for separating aluminum from its ore. At first, he was unsuccessful, but then realized that he needed a nonaqueous solvent for the aluminum oxide during electrolysis. On 23 Feb 1886, Hall found that molten cryolite (the mineral sodium aluminum fluoride) was a suitable solvent and using carbon electrodes with home-made batteries, he produced his first small globules of aluminum. By 1914, Hall's process had brought the cost of aluminium, once a precious metal used for fine jewelry, down to 18 cents a pound.«
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