Replace the question mark with a number
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 129
The first user who solved this task is Thinh Ddh.
#brainteasers #math #riddles
R.J. MitchellBorn 20 May 1895; died 11 Jun 1937 at age 42.Reginald Joseph Mitchell was a British aircraft designer, developer of the eight-gun Spitfire (1936), one of the best-known fighters in World War II. He was an engineer and designer for Supermarine Aviation Works (1916-37), chief engineer (from 1919) and was also known for design of a series of flying boats and high-speed seaplanes. In the years from 1920 to 1936, he designed no less than twenty-four different aircraft. The Spitfire was a derivative of his earlier S.6B seaplane racing aircraft.(image right source) |