this is too easy!!
) r/ y: r9 s' s0 n; z: r. Y2 L. Q& u2 g0 e$ i$ s# |
1. put 6 at each side.. take the one side which is heavier公仔箱論壇2 {& X' v+ l+ {% g
2. put 3 at each side.. also take the heavier side
6 A/ _5 I* G, K# p7 Qtvb now,tvbnow,bttvb3. 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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