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Find number abc

If 84b24 - 4a804 = c4820 find number abc. Multiple solutions may exist.

Correct answers: 34

The first user who solved this task is Nasrin 24 T.

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Wrong Way

As a senior citizen was driving down the freeway, his car phone rang.
Answering, he heard his wife's voice urgently warning him.
“Herman, I just heard on the news that there's a car going the wrong way on 280 interstate. Please be careful!”
“It's not just one car,” said Herman. “It's hundreds of them!”

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François Hennébique

Born 25 Apr 1842; died 20 Mar 1921 at age 78.French engineer who was an important leader in experimenting with various ways of reinforcing concrete with iron and steel. At the Paris Exposition of 1867, Hennebique saw Joseph Monier's tubs and tanks built of concrete reinforced with wire mesh, and began experimenting with ways to apply this new material to building construction, setting up his own firm (1867). First using reinforced-concrete floor slabs (1879), he progressed to a complete building system, patented 1892, using his invention of a method using hooked connections on reinforcing bars. Hennébique introduced his techniques into Britain when he was commissioned to build a new flour mill in Swansea (completed 1898). This was the first multistorey reinforced concrete building in Britain.

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