Calculate A*B*C*D
[6489] Calculate A*B*C*D - Look at the series (3, B, 22, 42, 83, 133, D, 302, 427, C, A, 970, ...), determine the pattern, and find the unknown values (A, B, C and D) and calculate A*B*C*D! - #brainteasers #math - Correct Answers: 19 - The first user who solved this task is Nasrin 24 T
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Calculate A*B*C*D

Look at the series (3, B, 22, 42, 83, 133, D, 302, 427, C, A, 970, ...), determine the pattern, and find the unknown values (A, B, C and D) and calculate A*B*C*D!
Correct answers: 19
The first user who solved this task is Nasrin 24 T.
#brainteasers #math
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A brilliant young boy was app...

A brilliant young boy was applying for a job with the railways. The interviewer asked him: "Do you know how to use the equipment?" "Yes", the boy replied. "Then what would you do if you realized that 2 trains, one from this station and one from the next were going to crash because they were on the same track?" The young applicant thought and replied "I'd press the button to change the points without hesitation." "What if the button was frozen and wouldn't work?" "I'd run outside and pull the lever to change the points manually" "And if the lever was broken?" "I'd get on the phone to the next station and tell them to change the points," he replied. "And if the phone was broken and needed an electrician to fix it?" The boy thought about that one. "I'd run into town and get my uncle" "Is your uncle an electrician?" "No, but he's never seen a train crash before!"
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First typewriter patent

In 1714, the world's first patent for a “Machine for Transcribing Letters” was granted in England by Queen Anne to Henry Mill (1683?-1771), a waterworks engineer with the New River Company. The patent (No. 395) described the invention as “an artificial machine or method for impressing or transcribing of letters, one after another, as in writing, whereby all writing whatsoever may be engrossed in paper or parchment so neat and exact as not to be distinguished from print; that the said machine... may be of great use in settlements and publick recors, the impression being deeper and more lasting than any other writing, and not to be erased or counterfeited without manifest discovery.” There is no remaining record that he actually built the machine.«
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