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1. put 6 on each side of the scale to get the heavier side 公仔箱論壇2 q) F3 b' l. c3 D2 l
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}
7 \2 a) K& z* Y7 l( L9 w5 Jtvb now,tvbnow,bttvb3. put one on each side to weigh and get the heavier one.