take 4 balls as a group, 3 groups - A B C公仔箱論壇( ~: X1 S2 f& U: t. s" e" B
weigh A & B (ex. B heavier)tvb now,tvbnow,bttvb9 p; y, b1 I9 y, 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。: |& d9 w* _& h
to find which group has the weight difference and find out is it (A is lighter)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。8 ~& A" w( Z2 i4 s3 L- C; P
heavier or lighter
5 Y* S0 T& U/ C& Uthen measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)) ~* f" x: C- d1 f6 x0 V" i; T
measure E vs F to find which 1 is lighter.... |