take 4 balls as a group, 3 groups - A B C
. u9 {& z/ p+ h1 S2 i3 G- T5.39.217.76weigh A & B (ex. B heavier)* V2 S B; X9 X! @
then weigh B & C (B & C same weight)
+ X2 ?+ H& M" y, s! G: u8 M: n- R5.39.217.76to find which group has the weight difference and find out is it (A is lighter)
7 L, q- J/ L! w* l9 ]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。heavier or lighter
7 H8 z5 y' v* ]* f0 {公仔箱論壇then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)9 _, {, t; F( M. p# i( A* t
measure E vs F to find which 1 is lighter.... |