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Find number abc

If 73ca5 + ac317 = 1b3b6b find number abc. Multiple solutions may exist.

Correct answers: 5

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Lovely Child

My wife said she'd like to have another baby...
I agreed. The one we have is starting to annoy me.

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Electric railway

In 1892, Thomas A. Edison was issued three patents for an "Electric Locomotive" and a fourth patent relating to an "Electric Railway" (U.S. Nos. 475,491 -4).

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