jexmand

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。! e# O' r; c( s' N
2nd trial - put the heavier 6 balls by 3 balls at each side
5 e7 v) h9 @' @' @! d8 p4 y9 a" bTVBNOW 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。lastly, take out the lighter 3 balls.... now left 3 balls..; B4 M5 I1 D* }* @! _- M7 a
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...