take 4 balls as a group, 3 groups - A B C公仔箱論壇0 |) k4 `0 g2 V* k+ U* J/ p/ F
weigh A & B (ex. B heavier)
) ?. f. v( i( i- M; [' }then weigh B & C (B & C same weight)公仔箱論壇! K) G1 ~* ]" c1 `+ c& |
to find which group has the weight difference and find out is it (A is lighter)5.39.217.77:8898+ h8 o! X" d- _; ~7 y% t
heavier or lighter
9 m v" j, `9 c" C8 N" {then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
3 E, A' G, ]! H0 C; d! c! {; q9 g5.39.217.77:8898measure E vs F to find which 1 is lighter.... |