take 4 balls as a group, 3 groups - A B C
8 e) E l: y6 [9 G% sTVBNOW 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。weigh A & B (ex. B heavier)tvb now,tvbnow,bttvb9 H9 F5 _9 O$ Q# }; @9 d1 g% I
then weigh B & C (B & C same weight)
" T1 t5 G9 u1 M8 b+ a' {公仔箱論壇to find which group has the weight difference and find out is it (A is lighter)
2 s. g% ?6 u! e+ e+ i$ U# Atvb now,tvbnow,bttvbheavier or lighter公仔箱論壇# k5 j; N7 ?/ h% k, l* M
then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
& a$ A1 e: }+ X$ f8 |6 V公仔箱論壇measure E vs F to find which 1 is lighter.... |