Find number abc
[4717] Find number abc - If a3b4c + 7223a = 8c87b find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 47 - The first user who solved this task is Djordje Timotijevic
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Find number abc

If a3b4c + 7223a = 8c87b find number abc. Multiple solutions may exist.
Correct answers: 47
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math
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Paul F. Tompkins: Airline Security Drawings

As Im standing there, I see they have a little sign with pictures of things you are not allowed to bring on the plane anymore. And they have, like, little drawings: circle, line through it, No! One of the things you cant bring on the plane anymore is a bomb -- no, no, they had a picture, cant do it. And it was the classic cartoon bomb, like the bowling ball with the little sparky whip coming out of it. And then you might think, Oh, I got a way around that. Uh-uh, not so fast -- they also had a picture of the bundle of dynamite with the clock.
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Edison patent

In 1904, Thomas A. Edison was issued a patent for an" Electrical Automobile" (No. 750,102) designed with a driving motor that may be conveniently and effectively utilized for the purpose of charging the batteries. Thus a small steam engine, preferable of the turbine type, was connected to the armature of an electric motor. By reversing the rotation of the motor-armature, the electric motor converts to a generator for charging the batteries. A clutch then is used to disconnect the motor from the driving wheels during charging (or, the wheels could be jacked up during the charging operation). In usual operation, the motor ran from storage batteries to power the carriage.
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