1st trial - put 6 balls at each side .. take out the lighter 6 balls
4 e( f0 X$ j' X- a, c! L; e5.39.217.762nd trial - put the heavier 6 balls by 3 balls at each side
, O. I8 Q, R5 x% s1 Alastly, take out the lighter 3 balls.... now left 3 balls..
1 N8 B" V6 P# Y! p$ LTVBNOW 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。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... |