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。9 U+ X* h% b7 A: X0 X
2nd trial - put the heavier 6 balls by 3 balls at each side; z! r1 f, i% `+ W, B# b
lastly, 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。, l' D2 B1 L2 P* U
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... |