Find number abc
If b14c3 - 243c9 = ca094 find number abc. Multiple solutions may exist.Correct answers: 45
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math
First U.S. railroad using the telephoneIn 1877, a trial test of a telephone was given in the Pennsylvania Railroad Company shops by associates of Alexander Graham Bell. The company was impressed by the demonstration and became the first to make a permanent installation.«* |