1st trial - put 6 balls at each side .. take out the lighter 6 balls
* B J8 _! x G+ Z& \ D5 Q0 n2nd trial - put the heavier 6 balls by 3 balls at each side
' z7 b* L, U8 b. n# y* @* l( tlastly, take out the lighter 3 balls.... now left 3 balls..tvb now,tvbnow,bttvb& ^) `" [7 ~/ o
3rd 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... |