Find number abc
If c9c07 - ca8bb = a3a1 find number abc. Multiple solutions may exist.Correct answers: 69
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math
Fastening patentIn 1913, the first U.S. patent for a hookless fastening for universal use was issued to Gideon Dundback of Hoboken, N.J. |