Find number abc
[7908] Find number abc - If aaac7 + 2ab86 = 6880b find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 1
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Find number abc

If aaac7 + 2ab86 = 6880b find number abc. Multiple solutions may exist.
Correct answers: 1
#brainteasers #math
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A passenger train is creeping...

A passenger train is creeping along, slowly. Finally it creaks to a halt. A passenger sees a conductor walking by outside.
"What's going on?" she yells out the window.
"Cow on the track!" replies the conductor.
Ten minutes later, the train resumes its slow pace.
Within five minutes, however, it stops again.
The woman sees the same conductor walk again.
She leans out the window and yells, "What happened? Did we catch up with the cow again?"
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Henry Fox Talbot

Died 17 Sep 1877 at age 77 (born 11 Feb 1800).William Henry Fox Talbot was an English inventor, mathematician, chemist, physicist, philologist and Egyptologist who invented the negative-positive photographic process. He improved the discovery by Thomas Wedgwood (1802) that brushing silver nitrate solution onto paper produces a light-sensitive medium able to record negative images, but Wedgewood was unable to control the darkening. In February 1835, Talbot found that a strong solution of salt fixed the image. Using a camera obscura to focus an image onto his paper to produce a negative, then - by exposing a second sheet of paper to sunlight transmitted through the negative - he was the first to produce a positive picture of which he was able to make further copies at will. His Pencil of Nature (1844) was the first photographically illustrated book.
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