jexmand

1st trial - put 6 balls at each side .. take out the lighter 6 balls
( d. U5 S: m; Q; ^* vTVBNOW 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。2nd trial - put the heavier 6 balls by 3 balls at each side
, N% t0 M% ]( T9 q6 C3 U* w公仔箱論壇lastly, take out the lighter 3 balls.... now left 3 balls..& i- z" J  M5 B& b6 S. Z" 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...