easy, one minutes i solve the problem1 _8 K% @' b5 U5 i
divide into half, mean 6/ 6
8 `- Y5 x3 Y. B! p. C' g' n6 n) w5.39.217.77take the heavier 6 ping pong2 T; ?/ v9 B, J/ k2 V5 L' I' A
divide into 3/3, take the heavier 3公仔箱論壇4 S. e9 d7 y P; y4 G3 `/ O
take the the other 3 that have the equal weight, switch each to measure, the most important things is labeling the ping pong so that we can recognize |
發表於 2009-2-8 08:11 PM
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