1st trial - put 6 balls at each side .. take out the lighter 6 ballsTVBNOW 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。5 n- u3 s" L. \. ^& @9 D7 l
2nd trial - put the heavier 6 balls by 3 balls at each side
& J Q) S' ~8 n0 Y7 b# @公仔箱論壇lastly, take out the lighter 3 balls.... now left 3 balls..
+ ~% u: b/ J( e) x* K1 u3rd 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... |