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Find number abc

If b4b62 + 8ba6a = 11c422 find number abc. Multiple solutions may exist.

Correct answers: 70

The first user who solved this task is Maja Nikolic.

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A visitor to a college campus

A visitor to a college campus paused to admire the new Hemingway Hall. "It's a pleasure to see a building named for Ernest Hemingway."
"Actually," said the guide, "it's named for Joshua Hemingway. No relation."
"Oh? Was Joshua Hemingway a writer also?"
"Yes, indeed. He wrote a check."

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First jukebox installed

In 1889, the first jukebox was installed when an entrepreneur named Louis Glass and his business associate, William S. Arnold, placed a coin-operated Edison cylinder phonograph in the Palais Royale Saloon in San Francisco. The machine, an Edison Class M Electric Phonograph with oak cabinet, had been fitted locally in San Francisco with a coin mechanism invented and soon patented by Glass and Arnold. This was before the time of vacuum tubes, so there was no amplification. For a nickel a play, a patron could listen using one of four listening tubes. Known as “Nickel-in-the-Slot,” the machine was an instant success, earning over $1000 in less than six months.[Image: From U.S. Patent No. 428,750 "coin actuated attachment for phonographs" issued to Glass and Arnold on 27 May 1890]

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