1 weight 6 ping pongs with another 6 ping pongs. see which side is heavier
/ E# ^# n3 {1 a" x( C% p5.39.217.77:88982 spilt the heavier side ping pongs in half and weight against each other
! Q" O2 Y$ h$ {% }5 _) d( n公仔箱論壇3 weiht either ping pongs one on one then you will know which is the heavy one. |