SHAKE THE TREE

Shake the Tree … and ten ?apples? will split into two collecting tubes, each with a scale. On the front side of the tree you can only see the content of one tube. Set up an equation and calculate the covered subset. By turning it around and having a look at the content of the second tube the tree is self-correcting. Due to the press-lock you can vary the number of ?apples?. Content: 1 plastic tree (height 12 cm), 10 plastic beads