take 4 balls as a group, 3 groups - A B C公仔箱論壇4 ?: s1 E- e/ O+ R; j
weigh A & B (ex. B heavier) s) |& t% c# o% ~/ p. I
then weigh B & C (B & C same weight)
0 G, T8 X' n) e+ e2 k+ `# qto find which group has the weight difference and find out is it (A is lighter)9 m( k" `$ k. V% w1 ^3 `
heavier or lighter
+ B; F9 U# p8 Q; ^* Y" A公仔箱論壇then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
: B# G* k4 x) V, Vos.tvboxnow.commeasure E vs F to find which 1 is lighter.... |