this is too easy!!
* \* W0 N7 L8 @6 J @% w
) T8 J" m, O3 \/ f+ f) K5.39.217.77:88981. put 6 at each side.. take the one side which is heavier公仔箱論壇9 w3 N% V, Z4 c. Q
2. put 3 at each side.. also take the heavier side
$ C8 p6 z8 a& m. i8 K6 _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.. |
發表於 2009-1-7 05:31 AM
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