Can you replace the question mark with a number?
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 39
The first user who solved this task is Nasrin 24 T.
#brainteasers #math #riddles
Charles Dillon PerrineBorn 28 Jul 1867; died 21 Jul 1951 at age 83.U.S. astronomer who discovered the sixth and seventh moons of Jupiter in 1904 and 1905, respectively. In 1904 he published a calculation of the solar parallax (a measure of the Earth-Sun distance) based on observations of the minor planet Eros during one of its close approaches to the Earth. |