Find number abc
If 9c50b + b79aa = bbbaa5 find number abc. Multiple solutions may exist.Correct answers: 6
#brainteasers #math
Adding machineIn 1872, the first U.S. patent for an adding machine capable of printing totals and subtotals, called a "calculating machine," was issued to E.D. Barbour of Boston, Mass. However, it was not practical. (No. 133,188) |