put 3 balls on each side,
& }5 r% H4 ?9 s% ^* }os.tvboxnow.comif balance, we can prove that all 6 balls on the 天平 is normal, 公仔箱論壇/ Q x- C3 Z5 I' w; p0 C* A; G
if not balance, we can prove that the 6 balls outside the 天平 is normal.
4 n8 x8 P+ L6 [tvb now,tvbnow,bttvbthen use the proved-normal ball on one side and put the other ball on other side 4 j; N5 H* p, s. X- K
to determine the abnormal is heavy and light |