1 weight 6 ping pongs with another 6 ping pongs. see which side is heavier
, r6 |7 r6 G) `! P公仔箱論壇2 spilt the heavier side ping pongs in half and weight against each othertvb now,tvbnow,bttvb8 j, G, l9 Y4 W8 o/ Y
3 weiht either ping pongs one on one then you will know which is the heavy one. |