take 4 balls as a group, 3 groups - A B C
* x s0 \ _8 h公仔箱論壇weigh A & B (ex. B heavier)
4 h, o# x; t( G% l" K5.39.217.76then weigh B & C (B & C same weight)5 P* d( U: ~' Z$ `3 A
to find which group has the weight difference and find out is it (A is lighter)
2 w- @; }7 J* Fheavier or lighter
' q. r0 I! K! a; U公仔箱論壇then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)5.39.217.76& p- E4 q% S: V3 ]% b/ v9 m/ t
measure E vs F to find which 1 is lighter.... |