Calculate the number 843
[7637] Calculate the number 843 - NUMBERMANIA: Calculate the number 843 using numbers [5, 5, 4, 7, 43, 642] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 1
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Calculate the number 843

NUMBERMANIA: Calculate the number 843 using numbers [5, 5, 4, 7, 43, 642] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
#brainteasers #math #numbermania
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Margie received a bill from th...

Margie received a bill from the hospital for her recent surgery, and was astonished to see a $1200 fee for the anaesthesiologist. She called his office to demand an explanation. "Is this some kind of mistake?" Margie asked when she got the doctor on the phone.
"No, not at all," the doctor said calmly.
"Well," said Margie, "that's awfully costly for knocking someone out."
"Not at all," replied the doctor. "I knock you out for free. The 1200 dollars is for bringing you back around."
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Sir George Biddell Airy

Born 27 Jul 1801; died 2 Jan 1892 at age 90. English astronomer and mathematician who became the seventh Astronomer Royal (1836-92). In his life he studied interference fringes in optics, made a mathematical study of the rainbow and computed the density of the Earth by swinging a pendulum at the top and bottom of a deep mine, determined the mass of the planet Jupiter and its period rotation, calculated the orbits of comets and cataloged stars. He designed corrective lenses for astigmatism (1825), the first that worked. His motivation was his own astigmatism. Airy had a long-standing battle with Babbage. In 1854, the conflict continued between the two during the battle of the incompatible railway gauges in England. Airy championed the railway narrow gauge and Babbage for the wide gauge.
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