Find number abc
[4780] Find number abc - If 92cac + 82a0b = 17c7a9 find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 43 - The first user who solved this task is Djordje Timotijevic
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Find number abc

If 92cac + 82a0b = 17c7a9 find number abc. Multiple solutions may exist.
Correct answers: 43
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math
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Matt's dad picked him up from...

Matt's dad picked him up from school one afternoon. Knowing the parts for the school play were supposed to be posted today, he asked his son if he got a part. Matt enthusiastically announced that he'd gotten a part. "I play a man who's been married for twenty years."
"That's great, son. Keep up the good work and before you know it they'll be giving you a speaking part."
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Traffic signal

In 1909, Thomas M. Flaherty filed for a U.S. patent, with an idea for a "Signal for Crossings" This was the first U.S. application for a traffic signal design, later issued as No. 991,964 on 9 May 1911. His signal used a large horizontal arrow pivoted on a post, which turned to indicate the right of way direction. It could be activated by an electric solenoid by a policeman beside the road. Although filed first, it was not the first patent actually issued for a traffic signal. Ernest E. Sirrine filed a different design seven months after Flaherty, but his patent was issued earlier, and thus he held the first U.S. patent for a "Street Traffic System" (No. 976,939 on 29 Nov 1910).
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