take 4 balls as a group, 3 groups - A B C8 m1 ?6 J4 }( d# \6 Q0 V3 h* h) g
weigh A & B (ex. B heavier)$ \# Q. ], g' R9 I% v4 s
then weigh B & C (B & C same weight)公仔箱論壇) Q1 H3 ^) F z" i
to find which group has the weight difference and find out is it (A is lighter)
% F- d, s; V! t3 \4 m+ d& Yheavier or lighter
" Z$ o- E' W; O3 { D; ` lthen measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
5 X; i9 P! ?) U' r3 Rtvb now,tvbnow,bttvbmeasure E vs F to find which 1 is lighter.... |