Find number abc
[3926] Find number abc - If a79ab - 18999 = c89aa find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 40 - The first user who solved this task is Thinh Ddh
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Find number abc

If a79ab - 18999 = c89aa find number abc. Multiple solutions may exist.
Correct answers: 40
The first user who solved this task is Thinh Ddh.
#brainteasers #math
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Little Johnny Goes Fishing

Little Johnny's father took him on a fishing trip to Canada.
On returning home after catching only three fish his father says, "The way I figure it each fish cost us $400!"
Little Johnny replied, "Well, at that price it’s a good thing we didn’t catch any more of them than we did."

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Black American patent

In 1897, a U.S. patent for a "Device for Rolling Cigarettes" was issued to black American inventor J.A. Sweeting (No. 594,501). A concave mantrel would carry tobacco while cigarette paper from a contained roll was turned around the contents, thus producing a perfectly and conveniently formed cigarette. By wetting a strip of the paper along the line of the roller with a finger, further turning of the mantrel would apply tension and separate the paper in a straight line. The wetted portion in contact with the formed cigarette wrapper would adhere to it and prevent unwinding of the wrapper.
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