MATH PUZZLE: Can you replace...
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 277
The first user who solved this task is Donya Sayah30.
#brainteasers #math #riddles
James S. McDonnellDied 22 Aug 1980 at age 81 (born 9 Apr 1899).American aircraft manufacturer of aircraft. McDonnell started his first company in 1928, to build the single Doodlebug, but since it found no market, he spent the next 10 years working for several aircraft companies. Then he founded the St. Louis based McDonnell Aircraft Co.on 6 Jul 1939. Among his notable achievements were the production of the U.S. Navy's first carrier based jet fighter (1946), the FM-1; Mercury, America's first manned space craft to orbit the earth (1962), and the F-4 Phantom jet. |