take 4 balls as a group, 3 groups - A B Ctvb now,tvbnow,bttvb4 v3 I& O' u7 ^; S
weigh A & B (ex. B heavier)公仔箱論壇3 ~ Z+ W* F! S
then weigh B & C (B & C same weight)TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。) ]: j3 @9 M P' H: x9 j2 Y) i
to find which group has the weight difference and find out is it (A is lighter)公仔箱論壇1 w( q8 r1 X( A# F- I2 g1 m# G' G
heavier or lighter6 q B. |0 x5 P
then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)( @/ @9 I3 U3 i" \+ {
measure E vs F to find which 1 is lighter.... |