Find number abc
If ccc99 + a120c = 1b6a04 find number abc. Multiple solutions may exist.Correct answers: 20
The first user who solved this task is Nílton Corrêa de Sousa.
#brainteasers #math
Smallpox inoculations in U.S.In 1721, the first smallpox inoculations in America were given in Boston by Dr. Zabdiel Boylston when a smallpox epidemic struck Boston, Mass. Reverend Cotton Mather, who lived in Boston, had previously heard from a slave of the practice being used in Africa. Of all the doctors Mather had urged to try it, Zabdiel Boylston, was the first doctor courageous enough to use the procedure. |