put 3 balls on each side, tvb now,tvbnow,bttvb% ] v- w/ Y- A
if balance, we can prove that all 6 balls on the 天平 is normal,
: o" B y! y; f$ ]5 Bif not balance, we can prove that the 6 balls outside the 天平 is normal.公仔箱論壇' V7 M N: b" Q" N4 B8 z
then use the proved-normal ball on one side and put the other ball on other side tvb now,tvbnow,bttvb; q. m" A1 Y5 V! b
to determine the abnormal is heavy and light |