Can you replace the question mark with a number?
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 78
The first user who solved this task is Nílton Corrêa de Sousa.
#brainteasers #math #riddles
Edwin G. BoringDied 1 Jul 1968 at age 81 (born 23 Oct 1886). Edwin Garrigues Boring was an American psychologist who was first recognized for his experimental work but later known as a historian of psychology. When the U.S. entered WW I, Robert M. Yerkes recruited Boring to help test the intelligence of draftees. In 1922, he was invited to Harvard, where he began a long and productive career as director of the psychological laboratory (1924-49). To free psychology from its status as part of the Dept. of Philosophy, Boring succeeded in establishing a separate Dept of Psychology (1934). Upon retirement, he was appointed Edgar Pierce Professor Emeritus and continued to teach classes until he was nearly 71. Throughout his life, he wrote textbooks and edited professional journals. |