1. put 6 on each side of the scale to get the heavier side
O5 l: k; p9 b7 \. G% Y2. 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}1 I3 A1 ~7 ~) J3 o
3. put one on each side to weigh and get the heavier one. |