take 4 balls as a group, 3 groups - A B C
+ g) F4 J. P2 Mweigh A & B (ex. B heavier), l/ J1 X, W+ ^. t6 P# k
then weigh B & C (B & C same weight)
& C! V( n% s# y; H0 J5.39.217.77to find which group has the weight difference and find out is it (A is lighter)tvb now,tvbnow,bttvb9 B5 c4 M' e( v' o8 }
heavier or lighter
, O5 c! x$ V, ?7 t" L4 E公仔箱論壇then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
2 x3 a, |9 T# d5 j) P! H5.39.217.77measure E vs F to find which 1 is lighter.... |