anakmalas

this is too easy!!公仔箱論壇0 v) F' W0 C  S# f! d; E
tvb now,tvbnow,bttvb7 P; @6 {0 E% v& ]# p1 Y
1. put 6 at each side.. take the one side which is heaviertvb now,tvbnow,bttvb  f/ l- j# g3 w. u
2. put 3 at each side.. also take the heavier side公仔箱論壇, X# J* |) P* Q2 H
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..