1 weight 6 ping pongs with another 6 ping pongs. see which side is heavier
6 ~7 A. p: h1 B# {! Ntvb now,tvbnow,bttvb2 spilt the heavier side ping pongs in half and weight against each othertvb now,tvbnow,bttvb7 x3 G9 {) Q3 q- N% j! d: J
3 weiht either ping pongs one on one then you will know which is the heavy one. |