take 4 balls as a group, 3 groups - A B C公仔箱論壇2 P' i8 v8 {5 H
weigh A & B (ex. B heavier)" E0 V3 J: Z; q3 x" Z. |5 m
then weigh B & C (B & C same weight)
, [. Z, j) O: a6 L* ?2 B公仔箱論壇to find which group has the weight difference and find out is it (A is lighter)
. R2 P) E. s7 u4 w5 Cwww.tvboxnow.comheavier or lighter
j1 k: M f$ B) |+ R: V# p S: Z: L: Hthen measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)www.tvboxnow.com8 O9 \0 n7 F4 [" l# Y n
measure E vs F to find which 1 is lighter.... |