Which number should replace the question mark?
FUNNY MATH: Which number should replace the question mark?Correct answers: 167
The first user who solved this task is Eric Newton.
#brainteasers #math #riddles
RayonIn 1910, rayon was first commercially produced, in Marcus Hook, Pa, USA, by the American Viscose Company. At the time, it was known by the name of artificial silk or a similar name. The patents had been acquired from the General Artificial Silk Company of Lansdowne, Pa. It was not until 1924 that the term rayon was adopted. Production in 1911 was 362,000 pounds. |