Calculate the number 567
[6890] Calculate the number 567 - NUMBERMANIA: Calculate the number 567 using numbers [2, 7, 9, 9, 40, 115] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 10 - The first user who solved this task is Nílton Corrêa de Sousa
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Calculate the number 567

NUMBERMANIA: Calculate the number 567 using numbers [2, 7, 9, 9, 40, 115] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 10
The first user who solved this task is Nílton Corrêa de Sousa.
#brainteasers #math #numbermania
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Retaking exam

Four college students missed an important exam, choosing to party instead. They go together to their professor the next day, and said, "We're sorry we missed the exam. We had a flat tire on the way to class. Is there any way we could possibly take a re-test?"

"Sure," replied the professor. "Come on in tomorrow, and you can all take a retest. But remember, it's a pass or fail."

The four students arrived the next day to take the retest, and all of them sat down in their seats. Before handing them their exams, their professor told them, "I've got good news and bad news. The good part is, there's only one question on the test. The bad news is, if any of you fail, you all fail the test."

The students sat there, a bit worried from this professor's strange introduction to the exam. Then the professor handed out the four exams, and each student stared down at their papers, which contained just one simple question:

"Which tire was it?"

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Wireless telephone

In 1919, a wireless telephone call was made by Secretary Josephus Daniels at his Navy Department desk, Washington D.C., to Ensign Faganwater, piloting a seaplane 150 miles away. A newspaper report said this was a record distance for such communication. Development began aided by Bell system experts since Feb 1917, with a successful test in Oct 1917. On 21 Nov 1919, President Wilson used a wireless telephone at the White House to direct maneuvers of a formation of planes nearby. Three years earlier, on 6 May 1916, the Secretary of the Navy had given orders, connected by AT&T Co. ship-to-shore radio telephone, to the captain of the battleship New Hampshire. Alexander Graham Bell had transmitted the first wireless telephone message using light in an experiment with his Photophone on 3 Jun 1880.«[Entry previously shown on this site for 16 Mar 1919, but that was date of a Washington newspaper article.]
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