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this is too easy!!
: U" `7 ]6 K9 _5 h8 q4 N5 i; Mtvb now,tvbnow,bttvb5.39.217.76. H. |" L( i. R  V$ z! }' x
1. put 6 at each side.. take the one side which is heavier
- E3 T5 x1 \" p  a( u5.39.217.762. put 3 at each side.. also take the heavier side
. @# z2 n( J& V' w% s公仔箱論壇3. put 1 at each side.. if the weight balance then the one not put inside is the heavy ball.. else the side which is heavier is the heavier ball..
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