take 4 balls as a group, 3 groups - A B C
! }+ a; a: t" F1 @5.39.217.77:8898weigh A & B (ex. B heavier)公仔箱論壇0 w* R6 b, G/ w' p$ z& q" b% ]2 n' W4 E1 [
then weigh B & C (B & C same weight)
2 ^+ `+ o9 T+ p' [4 Fto find which group has the weight difference and find out is it (A is lighter)5.39.217.77:8898) |' a" l0 s) f
heavier or lighter
% C: K& H, {1 g7 T3 Ntvb now,tvbnow,bttvbthen measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)' z: C' [- x; N! h8 z
measure E vs F to find which 1 is lighter.... |