take 4 balls as a group, 3 groups - A B C
! X3 m( X- O$ Cweigh A & B (ex. B heavier)
- K& t. u& p7 p0 H4 V8 E7 |公仔箱論壇then weigh B & C (B & C same weight)公仔箱論壇5 p$ o" I; ^; s* s: X: j+ v
to find which group has the weight difference and find out is it (A is lighter)5.39.217.77- V. ]. ^) U; k/ ^9 t
heavier or lighter& M! N( b9 d/ g' {% H; S
then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
$ _. Q; r" P0 D8 o$ F) _tvb now,tvbnow,bttvbmeasure E vs F to find which 1 is lighter.... |