take 4 balls as a group, 3 groups - A B C
9 w7 J: D5 U9 |/ O8 Z. fweigh A & B (ex. B heavier)/ q# P! r+ g8 E. ?
then weigh B & C (B & C same weight)# ~/ }* X5 W% S, Y/ D
to find which group has the weight difference and find out is it (A is lighter)tvb now,tvbnow,bttvb# T d# L6 L! d: i1 d2 V0 T9 g
heavier or lighter
& q0 {. Z" ]' `then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
- \" ^$ o+ G6 ]5 A2 kmeasure E vs F to find which 1 is lighter.... |