this is too easy!!
: o* W1 i( L# ]/ E* Zwww1.tvboxnow.com
' O; P+ z' h" B4 g/ \公仔箱論壇1. put 6 at each side.. take the one side which is heavier
* Q/ A+ `( p' `2. put 3 at each side.. also take the heavier side
1 l8 ?1 x7 V$ H2 n2 u" z7 v2 H' N3. 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.. |
發表於 2009-1-7 05:31 AM
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