Calculate A*B-C-D
[6386] Calculate A*B-C-D - Look at the series (5, A, C, 43, 73, 115, 171, D, 333, 443, 575, B, ...), determine the pattern, and find the unknown values (A, B, C and D) and calculate A*B-C-D! - #brainteasers #math - Correct Answers: 22 - The first user who solved this task is Nílton Corrêa de Sousa
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Calculate A*B-C-D

Look at the series (5, A, C, 43, 73, 115, 171, D, 333, 443, 575, B, ...), determine the pattern, and find the unknown values (A, B, C and D) and calculate A*B-C-D!
Correct answers: 22
The first user who solved this task is Nílton Corrêa de Sousa.
#brainteasers #math
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The room was full of pregnant...

The room was full of pregnant women and their partners, and the Lamaze class was in full swing. The instructor was teaching the women how to breathe properly, along with informing the men how to give the necessary assurances at this stage of the plan.
The teacher then announced, "Ladies, exercise is good for you. Walking is especially beneficial. And, gentlemen, it wouldn't hurt you to take the time to go walking with your partner!"
The room really got quiet. Finally, a man in the middle of the group raised his hand.
"Yes?" replied the teacher.
"Is it alright if she carries a golf bag while we walk?"
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Roy J. Plunkett

Died 12 May 1994 at age 83 (born 26 Jun 1910).American chemist and inventor of Teflon (the DuPont trademark name for Polytetrafluoroethylene or PTFE). His discovery, while working for DuPont, was accidental. On 6 Apr 1938, Plunkett found that a tank of gaseous tetrafluoroethylene (CF2CF2) had polymerized to a white powder. It was patented on 4 Feb 1941. During WW II this new polymer was applied as a corrosion-resistant coating to protect metal equipment used in the production of radioactive material. DuPont released its trademarked Teflon coated nonstick cookware in 1960.
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