take 4 balls as a group, 3 groups - A B C5.39.217.768 ~5 d5 |, x1 q z; y% z
weigh A & B (ex. B heavier)
5 _3 x T8 G/ S' k% ?then weigh B & C (B & C same weight)公仔箱論壇$ K& b+ ^; y3 A* d; O; v; f8 m! ^% C
to find which group has the weight difference and find out is it (A is lighter)
! a- F3 x2 O) Z% i Jheavier or lighter5.39.217.76; _ @' _3 T' ]& T, @" x$ G
then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF 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。. t( r* B1 R& e
measure E vs F to find which 1 is lighter.... |