Calculate 8+11
If 1+4=5, 2+5=12 and 3+6=21 then 8+11=?Correct answers: 90
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #riddles
John LindleyBorn 5 Feb 1799; died 1 Nov 1865 at age 66.British botanist whose attempts to formulate a natural system of plant classification greatly aided the transition from the artificial (considering the characters of single parts) to the natural system (considering all characters of a plant). He made the first definitive orchid classification in 1830. |