Find number abc
[6759] Find number abc - If 66aac - 390cb = a7171 find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 29 - The first user who solved this task is Nasrin 24 T
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Find number abc

If 66aac - 390cb = a7171 find number abc. Multiple solutions may exist.
Correct answers: 29
The first user who solved this task is Nasrin 24 T.
#brainteasers #math
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Married or Divorced

In my Sunday school class the focus was marriage or divorce, "The rapidly increasing divorce rate," remarked one member of the group, "indicates that America is indeed becoming the land of the free."
"Yes," replied the prosaic friend, "but the continued marriage rate suggests that America is still the home of the brave."

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File factory

In 1864, a U.S. patent for a machine for cutting files was issued to William Nicholson of Providence, R.I. (No. 42,216). This machine was put to use in the first successful U.S. file factory, the Nicholson File Company (1864). Prior to the Civil War, Nicholson had a machine tool business, at which time he developed his ideas on machine file making and built his first file cutting machine. He went to Europe, which at that time supplied most of the files used in America, and studied this industries, including the manufacture and treatment of steel. He opened his plant with the hope of developing to a production of 300 dozen files per day. The goal was not easily met, until he proved the quality of his files matched those made by hand.
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