Find number abc
[7122] Find number abc - If 75ccb + cbaca = a0a347 find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 12
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Find number abc

If 75ccb + cbaca = a0a347 find number abc. Multiple solutions may exist.
Correct answers: 12
#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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Perforated wrapping paper

In 1871, the first U.S. patent for perforated wrapping paper was awarded to Seth Wheeler of Albany, NY (No. 117,355). The paper was wound into rolls and could easily be torn off at the perforations. It was claimed that the fibers left between the perforations were sufficient for holding the sheets together as wound on the roll. In this way, the cost of cutting, counting and bundling stacks of pre-cut sheets was to be saved, together with making storage more convenient, and saving the paper from drying and becoming brittle by exposure to the atmosphere. Paper was already manufactured in rolls; only the step of perforation was added in its production, either with a row of holes or short cuts.
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