this is too easy!!
+ g5 `3 z0 z2 r% I2 J+ q9 {9 Otvb now,tvbnow,bttvb) c% a- a; a& ]* H5 F a0 e- E* u" H
1. put 6 at each side.. take the one side which is heavier
( a J/ A0 a. ?2. put 3 at each side.. also take the heavier side公仔箱論壇, F. {# s& B& l: l! c9 v7 ]
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
| 
