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Calculate the number 6648

NUMBERMANIA: Calculate the number 6648 using numbers [6, 7, 9, 1, 10, 443] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 13

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

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The President And His Small Dog

The former President is disembarking his private plane, carrying his tiny dog.
One of his Secret Service men says, "Nice dog, sir."
The President says, "Thanks, I got it for the former First Lady."
The Secret Service man replies, "Nice trade, sir."

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Rookes Evelyn Bell Crompton

Born 31 May 1845; died 15 Feb 1940 at age 94.British engineer and inventor who, as a young man, made a steam road engine (1860) and worked on other steam road haulage projects. When his interests turned to electric lighting, importing then manufacturing arc lamps of his own improved design, he began a career pioneering in the electrical industry, establishing the Crompton Company. By 1883, he had provided public lighting for large buildings, markets and railway stations. His company expanded, making domestic electric appliances (such as for heating and cooking). He was the first important British manufacturer of generators and advocated electrical standardisation. His Kensington Court power station in London was one of the first in the city.«

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