Calculate the number 4300
[6603] Calculate the number 4300 - NUMBERMANIA: Calculate the number 4300 using numbers [8, 9, 3, 7, 25, 442] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 7 - The first user who solved this task is Nasrin 24 T
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Calculate the number 4300

NUMBERMANIA: Calculate the number 4300 using numbers [8, 9, 3, 7, 25, 442] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 7
The first user who solved this task is Nasrin 24 T.
#brainteasers #math #numbermania
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Tourists

A group of American tourists was being guided through an ancient castle in Europe.

"This place," the guide told them, "is 600 years old. Not a stone in it has been touched, nothing altered, nothing replaced in all those years."

"Wow," said one woman dryly, "they must have the same landlord I have."

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Carbon paper

In 1806, Englishman Ralph Wedgwood secured the first patent for carbon paper, which he described as an “apparatus for producing duplicates of writings.” In his process, thin paper was saturated with printer's ink, then dried between sheets of blotting paper. His idea for the carbon paper was a byproduct of his inventionof a machine to help blind people write, and the “black paper” was really just a substitute for ink. In its original form, Wedgwood's “Stylographic Writer” employed a metal stylus instead of a quill for writing, with the carbon paper placed between two sheets of paper in order to transfer a copy onto the bottom sheet.
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