Replace the question mark with a number
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 177
The first user who solved this task is Donya Sayah30.
#brainteasers #math #riddles
Lars Fredrik NilsonDied 14 May 1899 at age 58 (born 27 May 1840).Chemist who discovered (1879) the oxide of scandium, scandia, in the rare-earth minerals gadolinite and euxenite. The existence of the element had been predicted by Dmitry Ivanovich Mendeleyev (1871) who tentatively called it ekaboron. |