put 3 balls on each side,
5 E4 N7 Z; y/ o/ B! ?3 A3 Y* ~tvboxnow.comif balance, we can prove that all 6 balls on the 天平 is normal,
9 R1 r h% R( N4 K3 V: {4 Ctvboxnow.comif not balance, we can prove that the 6 balls outside the 天平 is normal.
. X' w; }' N, V0 I$ x公仔箱論壇then use the proved-normal ball on one side and put the other ball on other side tvb now,tvbnow,bttvb' [4 t* x( q c
to determine the abnormal is heavy and light |