Can you replace the question mark with a number?
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 43
The first user who solved this task is Nílton Corrêa de Sousa.
#brainteasers #math #riddles
SandpaperIn 1834, the first U.S. invention of sandpaper was covered by four patents issued on this date to Isaac Fisher, Jr., of Springfield, Vt. These patents were titled "Coating Paper." (No X8246, -7) |