1 weight 6 ping pongs with another 6 ping pongs. see which side is heavier
( `) t: h" x2 p" y/ K5.39.217.772 spilt the heavier side ping pongs in half and weight against each other% d5 `# i! }1 J. M4 d8 X
3 weiht either ping pongs one on one then you will know which is the heavy one. |
發表於 2008-11-23 01:01 PM
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