Calculate A-B+C*D
[6520] Calculate A-B+C*D - Look at the series (1, 5, A, 58, 179, 543, 1636, 4916, 14757, C, B, D, ...), determine the pattern, and find the unknown values (A, B, C and D) and calculate A-B+C*D! - #brainteasers #math - Correct Answers: 31 - The first user who solved this task is Nasrin 24 T
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Calculate A-B+C*D

Look at the series (1, 5, A, 58, 179, 543, 1636, 4916, 14757, C, B, D, ...), determine the pattern, and find the unknown values (A, B, C and D) and calculate A-B+C*D!
Correct answers: 31
The first user who solved this task is Nasrin 24 T.
#brainteasers #math
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A special celebration...

While enjoying an early morning breakfast in a northern Arizona cafe, four elderly ranchers were discussing everything from cattle, horses, and weather to how things used to be in the "good old days."

Eventually the conversation moved on to their spouses. One gentleman turned to the fellow on his right and asked, "Roy, aren't you and your bride celebrating your 50th wedding anniversary soon?"

"Yup, we sure are," Roy replied.

"Well, are you gonna do anything special to celebrate?" another man asked.

The old gentleman pondered this for a moment, then replied, "For our 25th anniversary, I took the misses to Tucson. For our 50th, I'm thinking about going down there again to pick her up."

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Bernd Teo Matthias

Died 27 Oct 1980 at age 62 (born 8 Jun 1918).Bernd Teo Matthias was a German-American physicist who was a researcher in superconductivity, and discovered nearly 1,000 superconducting materials. He completed his education up to a Ph.D. degree (1943) in Germany, and immigrated to the U.S. (1947) working at M.I.T., then Bell Labs. He began low-temperature physics at the University of Chicago (1949). By 1961, he had moved to the University of California, San Diego and founded the Institute for the Study of Matter there (1962). By finding superconductivity, ferroelectricity and ferromagnetism in many hundreds of new materials, he showed these properties to be common occurences in nature, rather than in the rare instances he knew at the beginning of his work in the field. His success in finding new examples was said to be based on his intuition of the relationships he could see in the Periodic Table.«
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