MATH PUZZLE: Can you replace...
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 113
The first user who solved this task is H Tav.
#brainteasers #math #riddles
Telephone demonstrationIn 1877, a pianist performed in Philadelphia, and an audience heard the performance in New York. It was an important early demonstration of Alexander Graham Bell's new invention, the telephone. |