Replace the question mark with a number
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 228
The first user who solved this task is Maryam Pouya.
#brainteasers #math #riddles
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. |