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。% x2 M3 h% J# j+ n9 i a9 y
2nd trial - put the heavier 6 balls by 3 balls at each side5.39.217.77:8898: s. c! b% E+ d1 m# `) F
lastly, take out the lighter 3 balls.... now left 3 balls..
: j6 k+ ^4 E1 {# p; c, m2 P公仔箱論壇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... |