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Find number abc

If 743aa + 89cb1 = 1b3883 find number abc. Multiple solutions may exist.

Correct answers: 83

The first user who solved this task is Manguexa Wagle.

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Ted walks into a bar and shout...

Ted walks into a bar and shouts out, "So... who's the strongest person in here?"
The toughest guy looks at him and says, "I am the strongest person around these parts!"
Ted politely asks, "Can you help me push my car to the gas station?"

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Universal milling machine

In 1865, a U.S. patent was issued for the universal milling machine invented by Joseph Rogers Brown (No. 46,521). With this four-speed, 1,800-lb machine, Brown could quickly make any size twist drill, and replace previously tedious handwork in spiral milling or gear-cutting operations. Adjustments were calibrated with an accuracy of one-thousandth of an inch. He had already invented a precision gear cutter in 1855 to produce clock gears, and later patented a universal grinding machine in 1877. As an inventor, Brown made numerous advances in the field of fine measurement and machine-tool production. He co-founded J.R. Brown and Sharpe in 1853 to manufacture his products.

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