Calculate the number 1991
[7965] Calculate the number 1991 - NUMBERMANIA: Calculate the number 1991 using numbers [4, 6, 6, 6, 74, 713] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 0
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Calculate the number 1991

NUMBERMANIA: Calculate the number 1991 using numbers [4, 6, 6, 6, 74, 713] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
#brainteasers #math #numbermania
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Felix Hoffmann

Born 21 Jan 1868; died 8 Feb 1946 at age 78.German chemist who discovered aspirin, while a researcher for Bayer & Co. At first, he considered pharmacy but turned to chemistry. He earned a Ph.D. degree, then joined Friedrich Bayer's company in 1894. He was interest in finding a better pain reliever for his father's chronic rheumatism, to replace the use of salicylic acid which had a bad taste and caused stomach upset. On 10 Aug 1897, he formed a derivative, acetylsalicylic acid by acetylating salicylic acid with acetic acid. Company testing showed it was a safe and efffective drug for pain relief, lowering fever, and as an anti-inflammatory. It was marketed from 1899. Hoffman's name is on the patent, and he became head of the pharmaceutical marketing department, but received no financial share of its worldwide success. In 1928, he retired to Switzerland.«
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