Find number abc
If 5a785 - 4b4bb = 16b5c find number abc. Multiple solutions may exist.Correct answers: 57
The first user who solved this task is Djordje Timotijevic.
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Photocell operated doorsIn 1931, installation was completed on the first commercial doors operated by photoelectric cell. A magic eye controlled automated swinging doors between the kitchen and main dining room of Wilcox's Pier Restaurant in West Haven, Conn. |