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睇睇.. 完全唔識- -
lets try
take 4 balls as a group, 3 groups - A B C
. ~  O' u) m# ctvb now,tvbnow,bttvbweigh A & B (ex. B heavier)tvb now,tvbnow,bttvb( c8 U8 S# d8 d7 m% b: Y6 ?# y
then weigh B & C (B & C same weight)5.39.217.765 f. d( j- m! y4 Q; m
to find which group has the weight difference and find out is it (A is lighter)
4 F7 t! X5 e0 M  L. L3 {5.39.217.76heavier or lightertvb now,tvbnow,bttvb. Q* ~7 R8 _( g: J' e' u2 W
then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)9 ?) M; ]& @% u6 o
measure E vs F to find which 1 is lighter....
简单!!
easy
???
is it really tht hard?
thank you for your sharing!
???????????????
唔識
thx
;)) ;))
好難呀....
分成a,b,c三堆,分别为5,5,2三堆,先称a与b,若平衡,则中a中取一个与c中任一个称,就得到结果。若a与b不平衡,假设a略重,重a中随机取3个出来加上c中任一个,b中取3个出来加c中的任一个,若平衡,则a中剩余一个就为异常。若a仍重

哈哈

hv a look
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