waitboy

1. put 6 on each side of the scale to get the heavier side 公仔箱論壇4 D/ T9 w% `9 Q7 d/ P3 F
2. take off any two balls from the more heavier side (among 6 balls) and put 2 on each side of the scale to weigh and get the heavier side(which are 2 balls) {if at this moment the scale is balanced, then weigh the 2 balls which we took out before} {if at this moment the scale is not balanced, then go 3}公仔箱論壇" t0 @4 q9 W6 Q
3. put one on each side to weigh and get the heavier one.