1. put 6 on each side of the scale to get the heavier side ; v' k: A7 T! h3 x1 g
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}5.39.217.779 M- R0 p" b8 u6 D: X# m. ~% O
3. put one on each side to weigh and get the heavier one. |
發表於 2008-7-13 10:51 PM
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