What is the missing number?
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 61
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #riddles
Johann Christian FabriciusDied 3 Mar 1808 at age 63 (born 7 Jan 1745).Danish entomologist who was one of the great entomologists of the 18th century. After studying with Swedish naturalist Linnaeus, Fabricius travelled widely in Europe to see insect collections and produced many publications describing all the new species that he saw. He named and classified some 10,000 species of insects. The system of classification of insects he developed was based on mouth structure (instead of wing). He offered theories, progressive for his time, suggesting that hybridization could produce produce new species or varieties, and that environmental adaptation could influence changes in anatomical structure or function. |