Replace the question mark with a number
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 169
The first user who solved this task is H Tav.
#brainteasers #math #riddles
Edison patentIn 1886, a patent for an “Electrode for Telephone-Transmitters” was issued to Thomas Alva Edison (No. 348114). The patent application was dated one year earlier on 12 Jan 1885. |