Find number abc
[7464] Find number abc - If 3bb30 + 7abca = cca8aa find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 2
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Find number abc

If 3bb30 + 7abca = cca8aa find number abc. Multiple solutions may exist.
Correct answers: 2
#brainteasers #math
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A man has to leave the country...

A man has to leave the country on business and he entrusts with his best friend the job of keeping an eye on his wife. If anything out of the ordinary should occur, he was to be notified immediately.
After about a week of no news the business man received a telegram: "The man who comes to visit your wife every night didn't show up yesterday..."
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Pencil sharpener

In 1897, a U.S. patent was issued for a pencil sharpener to its black American inventor, John Lee Love of Fall River, Mass. Love's invention was the very simple, portable pencil sharpener that many artists use: the pencil is put into the opening of the sharpener and rotated by hand, and the shavings stay inside the sharpener (No. 594,114). By rotating the outer case, internal gears turn a pencil sharpener blade around the inserted pencil. Two years earlier, Love had previously received a patent two years earlier for his invention of a "plasterers' hawk," which is a flat board, about 18-in square, with a handle underneath, used to carry a small amount of plaster material being worked onto a wall face (9 Jul 1895). This kind of device is still used today.
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