Find number abc
[7146] Find number abc - If ba53b + c573a = 7c2cb find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 9
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Find number abc

If ba53b + c573a = 7c2cb find number abc. Multiple solutions may exist.
Correct answers: 9
#brainteasers #math
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The Pastor's Wife

Gladys was the preacher's wife and accompanied her husband each Sunday to church. One particular Sunday when the sermon seemed to go on forever, many in the congregation fell asleep.
After the service, to be sociable, she walked up to a very sleepy looking gentleman. In an attempt to revive him from his stupor, she extended her hand in greeting, and said, "Hello, I'm Gladys Dunn."
To which the gentleman replied, "You're not the only one!"
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Steam percussion rock drill

In 1849, Joseph J. Couch received the first U.S. patent for a steam-powered percussion rock drill (No. 6,237) as “improved machinery for drilling rocks”. It was driven by steam power and acted without need of gravity supplying any part of the motion. A sliding drill support frame enabled it to be operated in any desirable position or direction. Power was supplied by the piston of a steam cylinder connected to a suitable steam generator. The machine would be held stationary as the rotating drill was thrown against the rock. The drill rod would disengaged at each stroke, and travel with its own momentum, so that upon striking the rock, the shock was not transmitted back to the rest of the machine, preventing it from damage. After each blow, the tool was seized by means of friction-grips to retract and repeat.«
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