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。% [" U/ s/ Z Y1 Z$ |9 f
2nd trial - put the heavier 6 balls by 3 balls at each side
1 D( ~: K" A" f+ s6 G8 B公仔箱論壇lastly, take out the lighter 3 balls.... now left 3 balls..0 N/ g. {; `5 y$ n+ m% S: U/ y
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... |