take 4 balls as a group, 3 groups - A B C
b& o2 e3 O# U: [tvboxnow.comweigh A & B (ex. B heavier)
1 i0 {2 C+ d; x7 }$ v7 N$ x4 Ftvb now,tvbnow,bttvbthen weigh B & C (B & C same weight)tvb now,tvbnow,bttvb% ] }# Z- h/ e0 L
to find which group has the weight difference and find out is it (A is lighter)tvboxnow.com* i, x3 M% K* V
heavier or lighter
2 h1 f1 b9 @" L3 J' j" `tvboxnow.comthen measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)公仔箱論壇% ?! h- I& s6 |3 ? P, h
measure E vs F to find which 1 is lighter.... |