(bright upbeat music) - Good morning, boys and girls. Welcome back to Room Nine. It is Dr. Sanders in here getting ready for somewhat baseball. And knows (indistinct), but no, I am here in the largest ...
In 2007 Alexander Shapovalov suggested an unusual coin-weighing problem for the sixth international Kolmogorov math tournament [5]. A judge is presented with 80 coins that all look the same, knowing ...