Calculate A*B-C+D
[6439] Calculate A*B-C+D - Look at the series (10, 19, 36, D, C, A, 520, 1033, 2058, 4107, B, 16397, ...), determine the pattern, and find the unknown values (A, B, C and D) and calculate A*B-C+D! - #brainteasers #math - Correct Answers: 30 - The first user who solved this task is Nasrin 24 T
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Calculate A*B-C+D

Look at the series (10, 19, 36, D, C, A, 520, 1033, 2058, 4107, B, 16397, ...), determine the pattern, and find the unknown values (A, B, C and D) and calculate A*B-C+D!
Correct answers: 30
The first user who solved this task is Nasrin 24 T.
#brainteasers #math
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The Sailor And The Pirate

A sailor meets a pirate in a bar, and take turns boasting of their adventures on the high seas. The sailor notes that the pirate has a peg-leg, hook, and an eyepatch.

The sailor asks "So, how did you end up with the peg-leg?"

The pirate replies "We were in a storm at sea, and I was swept overboard into a school of sharks. Just as my men were pulling me out a shark bit my leg off."

"Wow!" said the sailor. "What about your hook"?

"Well...", replied the pirate, "While my men and I were plundering in the middle east, I was caught stealing from a merchant and the punishment for theft in the middle east is the loss of the hand that steals"

"Incredible!" remarked the sailor. "How did you get the eyepatch"?

"A sea gull dropping fell into my eye.", replied the pirate.

"You lost your eye to a sea gull dropping?" the sailor asked incredulously.

"Well...", said the pirate, "..it was my first day with the hook."

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Thomas Edison

Died 18 Oct 1931 at age 84 (born 11 Feb 1847). Thomas Alva Edison was an American inventor who held a world record 1,093 patents (including those held jointly) and created the world's first industrial research laboratory. He showed an early curiosity for explanations of how everything worked and was especially interested in chemistry. He began selling newspapers on the railroad at age 12, and learned how to operate a telegraph. In 1868, his first invention was an electric vote-recording machine. In 1869, he made improvements on the stock-ticker. In 1876 he moved his laboratory to Menlo Park, N.J., where he invented his phonograph (1877) and the first prototype of a commercially practical incandescent electric light bulb (1879). Other inventions included storage batteries, a dictaphone, and a mimeograph. By the late 1880s he made motion pictures, and by 1912 was experimenting with talking pictures. Edison developed electric power from central generating stations. He became known internationally as “the Wizard of Menlo Park.”In 1962 his second laboratory and home in West Orange, New Jersey, was designated a U.S. National Historic Site.
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