Calculate the number 217
[7323] Calculate the number 217 - NUMBERMANIA: Calculate the number 217 using numbers [8, 6, 6, 5, 77, 848] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 4
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Calculate the number 217

NUMBERMANIA: Calculate the number 217 using numbers [8, 6, 6, 5, 77, 848] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 4
#brainteasers #math #numbermania
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What Time Is It?

A man had been driving all night and by morning was still far from his destination. He decided park somewhere quiet so he could get an hour or two of sleep.

As luck would have it, the quiet place he chose happened to be on one of the city's major jogging routes. No sooner had he settled back to snooze when there came a knocking on his window. He looked out and saw a jogger running in place.

"Yes?"

"Excuse me, sir," the jogger said, "do you have the time?"

The man looked at the car clock and answered, "8:15."

The jogger said thanks and left. The man settled back again, and was just dozing off when there was another knock on the window and another

jogger.

"Excuse me, sir, do you have the time?"

"8:25!"

The jogger said thanks and left. With other joggers passing by it was only a matter of time before another one disturbed him.

To avoid the problem, he got out a pen and paper and put a sign in his window saying, "I do not know the time!"

Once again he settled back to sleep. He was just dozing off when there was another knock on the window.

"Sir, sir? It's 8:45!"

Found on https://forums.runnersworld.co.uk, posted on July 2003 by Wolfy forum member.

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Jean-Robert Argand

Born 18 Jul 1768; died 13 Aug 1822 at age 54.Swiss accountant and mathematician who was one of the earliest to use complex numbers, which he applied to show that all algebraic equations have roots. His name is associated with the Argand diagram, a geometrical representation of complex numbers as points in a Cartesian plane, with the real portion of the number on the x axis and the imaginary part on the y axis. He self-published this concept in an anonymous monograph (1806). Though talented in mathematics, he remained an amateur; his livelihood was asan accountant and bookkeeper. Although Argand's name became associated with this idea, the geometrical interpretation of complex numbers appeared earliest in work by Caspar Wessel (1787), first presented on 10 Mar 1797 to a the Royal Danish Academy of Sciences and published in 1799.«
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