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Calculate the number 775

NUMBERMANIA: Calculate the number 775 using numbers [8, 2, 1, 1, 82, 355] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 11

The first user who solved this task is Nílton Corrêa de Sousa.

#brainteasers #math #numbermania

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How the diet going?

"How the diet going?"
"Not good, I had eggs for breakfast."
"Scrambled?"
"No, chocolate."

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Cast iron plow

In 1797, Charles Newbold, born Chesterfield, NJ (1780), was issued the first US patent for a cast-iron plow, at a time when the cast iron plow of James Small had to be imported from Scotland. On Newbold's plow the share, landslide and moldboard were cast in one piece, then wooden handles and beam added. Local farmers, though, rejected its use, fearing the iron might poison the soil! Eventually it was the improvements made by others that brought successful cast iron then steel plows to market.

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