Find number abc
[5964] Find number abc - If 6bca8 - 3695a = 2ac9a find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 56 - The first user who solved this task is Nílton Corrêa De Sousa
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Find number abc

If 6bca8 - 3695a = 2ac9a find number abc. Multiple solutions may exist.
Correct answers: 56
The first user who solved this task is Nílton Corrêa De Sousa.
#brainteasers #math
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Laying Turf

A painting contractor was speaking with a woman about a job. In the first room, she said she would like a pale blue. The contractor wrote this down and went to the window, opened it, and yelled out "GREEN SIDE UP!" In the second room, she told the painter she would like it painted in a soft yellow. He wrote this on his pad, walked to the window, opened it, and yelled "GREEN SIDE UP!" The lady was somewhat curious but she said nothing. In the third room, she said she would like it painted a warm rose color. The painter wrote this down, walked to the window, opened it and yelled "GREEN SIDE UP!" The lady then asked him, "Why do you keep yelling 'green side up'?"

"I'm sorry," came the reply.

"But I have a crew of blondes laying sod across the street."

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Tungsten filaments

In 1913, Dr William David Coolidge patented (U.S. No. 1,082,933) a method for making ductile tunsten for the purpose of making filaments for electric lamps. When Coolidge joined the General Electric Research Laboratory (1905), he was given the task of replacing the fragile carbon filaments in electric light bulbs with tungsten filaments, although tungsten was difficult to work. He developed a way to superheat the metal tunsten in order to draw it out into the fine threads used for lamp filaments. Coolidge then improved the X-ray tube by using a heated tungsten filament cathode in vacuum producing electrons, instead of residual gas molecules in the tube. This permitted higher operating voltages, higher energy X rays and the treatment of deeper-seated tumors.
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