put 3 balls on each side, 5.39.217.77:88986 T8 }0 P( V5 I0 v0 a; [
if balance, we can prove that all 6 balls on the 天平 is normal,
& w& A4 z2 W: H+ g0 ^3 |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。if not balance, we can prove that the 6 balls outside the 天平 is normal.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。$ P: z% F& ?( W/ |+ q: |
then use the proved-normal ball on one side and put the other ball on other side b- I# y$ e3 D" J5 X9 V
to determine the abnormal is heavy and light |