take 4 balls as a group, 3 groups - A B C
4 f0 G' ~) M, a& K1 Nweigh A & B (ex. B heavier)公仔箱論壇( X- ], V* w# A4 C9 G. a" C
then weigh B & C (B & C same weight)
% ~4 H$ c4 j, J* @% Y5.39.217.77to find which group has the weight difference and find out is it (A is lighter)tvb now,tvbnow,bttvb* D/ e3 a$ A( o5 w
heavier or lighter
8 V0 {- Q" | O% O# a% ]then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)公仔箱論壇% \# g. j& c" `
measure E vs F to find which 1 is lighter.... |