put 3 balls on each side, 公仔箱論壇5 G- X8 L8 f, x3 M$ E0 l4 S
if balance, we can prove that all 6 balls on the 天平 is normal,
( H, m* r0 F* s% z9 d公仔箱論壇if not balance, we can prove that the 6 balls outside the 天平 is normal.
, Y1 {; t" K o* e1 c2 `: X. L" [3 A9 N/ Jwww2.tvboxnow.comthen use the proved-normal ball on one side and put the other ball on other side 0 T, g6 a9 m( a; T, k5 M
to determine the abnormal is heavy and light |