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睇睇.. 完全唔識- -
lets try
take 4 balls as a group, 3 groups - A B C0 s  |# Y  n3 q5 p; e. L& S9 ]
weigh A & B (ex. B heavier)
6 j9 A& z* ~, E. ?" W9 `tvb now,tvbnow,bttvbthen weigh B & C (B & C same weight)os.tvboxnow.com0 P! r. T3 g! ~% L9 |
to find which group has the weight difference and find out is it (A is lighter)
# n4 w/ _  G3 l0 L6 L$ B8 n  i1 Jheavier or lighter
8 N, w4 M2 W- d3 q+ I; q公仔箱論壇then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)公仔箱論壇# Z9 s6 U7 z) ]( {3 j3 q% I
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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