this is too easy!!tvb now,tvbnow,bttvb. @2 P+ G4 k: G% _5 }% p' f
6 Y+ h; u( j) |' T) f$ X ~
1. put 6 at each side.. take the one side which is heavier) b- B. X* P1 u
2. put 3 at each side.. also take the heavier side
* k+ ?1 @* d* oTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。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.. |