take 4 balls as a group, 3 groups - A B Ctvb now,tvbnow,bttvb) O' M6 J( q& g7 ?3 c4 z
weigh A & B (ex. B heavier)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。7 Z- I4 q9 _; K) ^; L
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。* G- W. h+ u0 s" x: u
to find which group has the weight difference and find out is it (A is lighter)% M# c. A' i/ c5 k1 H$ l# u
heavier or lighter
3 M# l1 I* }1 W# E9 _then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)( ]* J4 |- T. e6 |& O& }
measure E vs F to find which 1 is lighter.... |