Can you replace the question mark with a number?
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 137
The first user who solved this task is Alexander Filimonoff.
#brainteasers #math #riddles
Gino P. SantiDied 3 Apr 1997 (born c. 1916).American engineer whose long career with the U.S. Air Force was most notable for his development of the pilot ejection system.[Enc. Brit gives year of birth as 1916/17.] |