1. put 6 on each side of the scale to get the heavier side
* r" `! o. T* U5 O [) t3 ttvb now,tvbnow,bttvb2. 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}, M! R F1 \$ ]/ M: u$ d7 v- `) [
3. put one on each side to weigh and get the heavier one. |