MATH PUZZLE: Can you replace...
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 339
The first user who solved this task is Donya Sayah30.
#brainteasers #math #riddles
Yellow fever vaccineIn 1932, a vaccine was announced for yellow fever for human immunization. This first public announcement was made at a meeting of the American Societies for Experimental Biology at Philadelphia, Pennsylvania. It was developed by Drs. Wilbur A. Sawyer, Wray D.M. Lloyd, and Stuart F. Kitchen, who were sponsored by the Rockefeller Foundation. |