Find number abc
[3204] Find number abc - If 73cc1 - a18cc = 115b7 find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 67 - The first user who solved this task is Djordje Timotijevic
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Find number abc

If 73cc1 - a18cc = 115b7 find number abc. Multiple solutions may exist.
Correct answers: 67
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math
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A bar owner locked up his plac...

A bar owner locked up his place at 2 AM and went home to sleep. He had been in bed only a few minutes when the phone rang. “What time do you open up in the morning?” he heard an obviously inebriated man inquire.
The owner was so furious, he slammed down the receiver and went back to bed. A few minutes later there was another call and he heard the same voice ask the same question. “Listen, the owner shouted, “there’s no sense in asking me what time I open because I wouldn’t let a person in your condition in—“
“I don’t want to get in,” the caller interjected. “I want to get out.”
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Screw-blank feeder mechanism

In 1856, Cullen Whipple, of Providence, RI, patented a screw-blank feeder mechanism (U.S. No. 15,052). In Oct 1840, he was one of ten incorporators of The New England Screw Co. He invented a machine for the company to use cutting the threads of screws (patented 18 Aug 1842) which he later improved by adding more cutters to also point the screws in the same machine (patent No. 9,477, 14 Dec 1852). He patented various other devices for improving the manufacture of screws. He has been credited* as the inventor of the first practical machine for pointing screws. Early screws had no point and required that a starter hole be drilled before use.«[Note: Famous First Facts by Joseph Nathan Kane incorrectly cites this screw-blank feeder mechanism's 3 Jun 1856 date and patent number as the first practical screw-pointing machine patent. In fact, Whipple invented his screw pointing machine four years earlier - in 1852.]
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