1st trial - put 6 balls at each side .. take out the lighter 6 balls. ]2 e* d3 ^9 l; l( o
2nd trial - put the heavier 6 balls by 3 balls at each side* c, e* ~. o: Z) _' F
lastly, 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。9 [0 Q) N) i, X' U+ U% [. J3 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... |