Find number abc
[3557] Find number abc - If 91cba + a6403 = 11b9bc find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 50 - The first user who solved this task is Linda Tate Young
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Find number abc

If 91cba + a6403 = 11b9bc find number abc. Multiple solutions may exist.
Correct answers: 50
The first user who solved this task is Linda Tate Young.
#brainteasers #math
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Why Should I Whistle?

Murphy and his wife went for a stroll in the park. They sit down on a bench to rest for awhile. Soon they overhear voices coming from a secluded spot nearby.
Suddenly, Mrs. Murphy realizes that a young man is about to propose. Not wanting to be eavesdropping during such an intimate moment, she gently nudges her husband and whispers, "Whistle, to let that young couple know that someone can hear them."
To which Murphy replies, "Whistle? Why should I whistle? Nobody whistled to warn me?"

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Lathe

In 1819, a U.S. patent for a profile lathe was issued to Thomas Blanchard of Middlebury, Connecticut. It was capable of manufacturing irregular forms, such as gun stocks. His machine used a friction-wheel to follow the surface of a sample pattern and a cutting wheel on the same shaft which would thus carve the workpiece to the same contour. It could produce the work of 13 operators, and thus provided the finished materials at much less cost. After inventing a tack-making machine at his brother's factory, Blanchard was recruited by the U.S. Armory at Springfield, Mass. to build machines to efficiently produce gun parts. Congress twice extended this patent, first to 1834, then to 1848, giving a total of 42 years in force.*
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