MATH PUZZLE: Can you replace...
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 309
The first user who solved this task is Manguexa Wagle.
#brainteasers #math #riddles
Design patentIn 1842, the design patent, a new form of patent was authorized by Act of Congress. The first U.S. design patent was issued for typefaces and borders to George Bruce of New York City on 9 Nov 1842. |