this is too easy!!$ M# p+ T [, Y3 C4 W0 |
, n* k6 N ?3 o3 A& j1. put 6 at each side.. take the one side which is heavier5 L" h1 F; t2 M3 Q" q
2. put 3 at each side.. also take the heavier side
- R1 g! q* A: D9 o公仔箱論壇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
| 
