put 3 balls on each side, 1 v+ l; r& A. i
if balance, we can prove that all 6 balls on the 天平 is normal,
$ ?" |, S9 E }" }; h% Qtvb now,tvbnow,bttvbif not balance, we can prove that the 6 balls outside the 天平 is normal.
4 N4 @% q8 L' @. j8 @" ?5.39.217.77:8898then use the proved-normal ball on one side and put the other ball on other side : c" S, u" Y' k. V8 Y+ K
to determine the abnormal is heavy and light |