MATH PUZZLE: Can you replace...
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 158
The first user who solved this task is Allen Wager.
#brainteasers #math #riddles
Curtis MarbutBorn 19 Jul 1863; died 25 Aug 1935 at age 72.Curtis Fletcher Marbut was a U.S. geologist and cofounder of modern soil science, who worked closely with experts from many countries to develop international classification systems (1927) for soil materials. From 1895 Marbut taught geology at University of Missouri, while also working for the Missouri Geological Survey and directing the Missouri Soil Survey. In 1910 he left Missouri and was a soil scientist for the U.S. Bureau of Soils, for the rest of his life. Due to his exceptional service, his mandatory civil service retirement at 70 was twice waived by President Franklin D. Roosevelt. He died during a field trip to China. |