Find number abc
If ca63a - 62b6b = 3257a find number abc. Multiple solutions may exist.Correct answers: 37
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math
Railroad couplingIn 1873, the first U.S. patent for a railroad coupler was issued to E.H. Janney of Alexandria, Virginia. |