jexmand

1st trial - put 6 balls at each side .. take out the lighter 6 balls
) u0 t" n" I/ @5 o2nd trial - put the heavier 6 balls by 3 balls at each side
  P+ U$ O" h5 g& E& Olastly, take out the lighter 3 balls.... now left 3 balls..TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。+ A+ c: M" a; R! A" q
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...