Find number abc
If b8acb + 9cac6 = bb0647 find number abc. Multiple solutions may exist.Correct answers: 2
#brainteasers #math
Magic lantern slidesIn 1850, the first U.S. patent for magic lantern slides made of glass plate was issued to their inventor Frederick Langenheim of Philadelphia, Pa. (No. 7,784) as an "improvement in photographic pictures on glass." |