take 4 balls as a group, 3 groups - A B C
. ~ O' u) m# ctvb now,tvbnow,bttvbweigh A & B (ex. B heavier)tvb now,tvbnow,bttvb( c8 U8 S# d8 d7 m% b: Y6 ?# y
then weigh B & C (B & C same weight)5.39.217.765 f. d( j- m! y4 Q; m
to find which group has the weight difference and find out is it (A is lighter)
4 F7 t! X5 e0 M L. L3 {5.39.217.76heavier or lightertvb now,tvbnow,bttvb. Q* ~7 R8 _( g: J' e' u2 W
then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)9 ?) M; ]& @% u6 o
measure E vs F to find which 1 is lighter.... |