1st trial - put 6 balls at each side .. take out the lighter 6 balls
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% O3 k# t& g0 u8 Z1 k# Q+ zlastly, 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。: Z A) O6 B+ W8 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... |