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answer?
Checking the answer!
想到了~~還是要睇下答案...
感觉的出来就是不知道....
dont know ar
thank you
睇答案^^..............
好難
不用秤5.39.217.77:8898( e8 \5 l! v) B  L9 B: P# O3 l
用手
SEE SEE
thxxxxxxxxxxx
see see
?
& F& R7 b$ P* H9 |+ |; t5.39.217.77:8898試試
very hard!!!!!!!!!!!!
1) divide the number of balls into 3 sets of 4." N: N0 c6 I: s+ q
2) take two sets and compare their weight against each other, then if they are balance, that mean the heavier ball is in the third sets, otherwise, the ball is in the set that is heavier on the sacle.
1 i0 d. K; x/ F公仔箱論壇3)  divide the set which contain the heavier ball into 2 sets, then compare their weight, the heavier set of balls should contain that heavier ball.5.39.217.77:8898- [% w; p) N( z: F# c
4)  lastly compare the two remaining ball to get the result.
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