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。$ E7 d3 W1 Q7 V v' h7 R& o0 B
2nd trial - put the heavier 6 balls by 3 balls at each side
* X6 e: M% J. l2 z7 m公仔箱論壇lastly, take out the lighter 3 balls.... now left 3 balls..
9 I+ ^5 ^; X s- J2 ?: `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... |