take 4 balls as a group, 3 groups - A B C公仔箱論壇( J+ R9 }3 q- g! x5 H4 M
weigh A & B (ex. B heavier)tvb now,tvbnow,bttvb& \, n- O5 F: \+ c
then weigh B & C (B & C same weight)
( {* U- l, v# @) f6 z6 [www2.tvboxnow.comto find which group has the weight difference and find out is it (A is lighter)+ n) h2 p/ k' P% e) T
heavier or lighter
* T: a) o4 X0 ]then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
7 _, l7 B" A! @7 e5 w$ Y, ~7 zmeasure E vs F to find which 1 is lighter.... |