Can you replace the question mark with a number?
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 60
The first user who solved this task is Nasrin 24 T.
#brainteasers #math #riddles
Cistern cleanersIn 1895, cistern cleaners were patented by black American inventor, R.H. Gray, (No. 537,151). In Aug 1894, he received a patent for a baling press. |