1st trial - put 6 balls at each side .. take out the lighter 6 balls
* f, B& n/ A6 [3 K: Q$ b; S8 E2nd trial - put the heavier 6 balls by 3 balls at each sidetvb now,tvbnow,bttvb0 z: e4 E' o/ N( p
lastly, take out the lighter 3 balls.... now left 3 balls..
4 o) |6 \& y$ q4 z+ k3 X" S5.39.217.773rd trial - put 1 ball on each side, left 1 ball on table. if both sides balance, the ball on table is the heaviest. if one side on the scale is heavier then it is the heaviest... |