put 3 balls on each side, 8 H' f8 ^5 H8 u; _0 Z) t! g8 [
if balance, we can prove that all 6 balls on the 天平 is normal,
7 g: s5 { a3 M( Q) _$ YTVBNOW 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.+ k2 p: F+ T1 B2 t% |
then use the proved-normal ball on one side and put the other ball on other side 5.39.217.77:8898" ?* g' P- n5 z6 N9 a0 O) q
to determine the abnormal is heavy and light |