take 4 balls as a group, 3 groups - A B C公仔箱論壇5 i. e4 D9 F) X: K1 g' r
weigh A & B (ex. B heavier)5.39.217.768 f. I D$ f# h7 B7 T n
then weigh B & C (B & C same weight)
0 N5 t5 U: x) S9 wto find which group has the weight difference and find out is it (A is lighter)5.39.217.763 F3 N' D5 J* K$ ?) D C5 L+ g
heavier or lighter
! [" H# I4 n3 F8 D( Fthen measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
* G$ `" p. ?! O9 n3 gmeasure E vs F to find which 1 is lighter.... |