Replace the question mark with a number
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 129
The first user who solved this task is Thinh Ddh.
#brainteasers #math #riddles
Edward DavyBorn 16 Jun 1806; died 26 Jan 1885 at age 78.English physician, chemist and inventor of an electromagnetic repeater for relaying telegraphic signals (1836) and an electrochemical telegraph (1838). He turned his interest to telegraphy after studying medicine and beginning a career as a chemist. He emigrated to Adelaide, South Australia, where he was a farmer and physician. |