take 4 balls as a group, 3 groups - A B Ctvb now,tvbnow,bttvb- w8 s( V/ W5 v% e7 @: a
weigh A & B (ex. B heavier)9 b& [+ t5 b% ?# |
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。0 g4 o, r* U) E6 V0 \1 B" N2 W
to find which group has the weight difference and find out is it (A is lighter): Z$ n' L8 X. y H0 n' E$ G
heavier or lightertvb now,tvbnow,bttvb6 d7 _2 O- Z; u' _4 v5 K! t( |
then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)公仔箱論壇% g/ o5 e' B P, n
measure E vs F to find which 1 is lighter.... |