1. put 6 on each side of the scale to get the heavier side 3 r4 {1 ?. M- q' O, G& q
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 I; T1 U7 \) a2 i$ X
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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