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Calculate the number 683

NUMBERMANIA: Calculate the number 683 using numbers [4, 1, 3, 3, 29, 603] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 19

The first user who solved this task is Djordje Timotijevic.

#brainteasers #math #numbermania

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My North Korean Friend

I asked my North Korean friend how it was to live in North Korea.
He said he can’t complain.

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Maria Mitchell

In 1847, Maria Mitchell, the first woman astronomer in the United States, discovered a comet. One night in the Autumn of 1847, Maria looked at the sky through the telescope in her homemade observatory at Nantucket, Mass. and saw a star five degrees above the North Star where there had been no star before. She had memorized the sky and was sure of her observation. It occurred to her that this might be a comet. Maria recorded the presumed comet's coordinates. The next night the star moved again. This time she was sure it was a comet. For this discovery, she was awarded a gold medal by the king of Denmark. She became the first woman elected to the American Academy of Arts and Sciences.

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