take 4 balls as a group, 3 groups - A B C
* S! n/ f4 ~/ O) N9 T1 fos.tvboxnow.comweigh A & B (ex. B heavier)公仔箱論壇 ]5 F* P- M& W% ]
then weigh B & C (B & C same weight)) S4 B& [$ e, q. L, p8 s3 ]
to find which group has the weight difference and find out is it (A is lighter)
( L4 t+ I; r7 A公仔箱論壇heavier or lighter
8 }2 e& N3 t0 i' _( M1 }then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)5 F1 f: C* M# }( N2 W/ Q
measure E vs F to find which 1 is lighter.... |