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。' r5 r/ h! m% g+ {" n8 b7 O. X+ p
2nd trial - put the heavier 6 balls by 3 balls at each side* S* d; N) O! `% G# E: e
lastly, take out the lighter 3 balls.... now left 3 balls..) z2 W6 |9 a0 M" {
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... |