Find number abc
[6711] Find number abc - If 2aac8 - 21b3a = b111 find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 28 - The first user who solved this task is Nasrin 24 T
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Find number abc

If 2aac8 - 21b3a = b111 find number abc. Multiple solutions may exist.
Correct answers: 28
The first user who solved this task is Nasrin 24 T.
#brainteasers #math
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The CEO was scheduled to speak...

The CEO was scheduled to speak at an important convention, so he asked one of his employees to write him a punchy, 20-minute speech.
When the CEO returned from the big event, he was furious. "What's the idea of writing me an hour-long speech?" he demanded to know. "Half the audience walked out before I finished."
The employee was baffled. "I wrote you a 20-minute speech," he replied. "I also gave you the two extra copies you asked for."
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Rock wool

In 1897, a rock wool factory in the U.S., the Crystal Chemical Works, was opened in Alexandria, Ind. Mineral wool had previously been made from blast furnace slag, but the new factory used local limestone rock in a process discovered by Charles Corydon Hall to create a sulphur-free product. The limestone was melted in a specially designed water-jacketed cupola, blown by steam pressure then allowed to cool to form fine threads. Its light, fibrous form resembled freshly-sheared sheep's wool. Being both insectproof and fireproof, rock wool was useful as a filtering material and as an insulating material for such uses as packing walls or for covering steam boilers. In 1929, the works became part of Johns Manville Corp.«
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