this is too easy!!
8 ^$ z; V9 r }tvb now,tvbnow,bttvb. ?7 o) W# G: W0 {! Y
1. put 6 at each side.. take the one side which is heavier4 O1 Z. `; v7 G+ P" [/ E) w: o
2. put 3 at each side.. also take the heavier side9 f b, p( C- {% N
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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