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Calculate the number 1160

NUMBERMANIA: Calculate the number 1160 using numbers [1, 1, 2, 9, 67, 422] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 10

The first user who solved this task is Nasrin 24 T.

#brainteasers #math #numbermania

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Invisible man

Nurse: "The invisible man is here for his appointment."
Doctor: "Tell him I'm sorry I can't see him right now."

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J. Ernest Wilkins Jr.

Died 1 May 2011 at age 87 (born 27 Nov 1923).Jesse Ernest Wilkins, Jr. was a Black-American physicist, mathematician and engineer (chemical/nuclear). He entered the University of Chicago at age 13, and by age 19, in 1942, he became the seventh African American to obtain a Ph.D. in Mathematics. His career achievement has been to develop radiation shielding against gamma radiation, emitted during electron decay of the Sun and other nuclear sources. He developed mathematical models to calculate the amount of gamma radiation absorbed by a given material. This technique of calculating radiative absorption is widely used among researcher in space and nuclear science projects. His was also a joint owner of a company which designed and developed nuclear reactors for electrical power generation.

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