1 weight 6 ping pongs with another 6 ping pongs. see which side is heavier
- y2 v2 u% _' H, P9 stvb now,tvbnow,bttvb2 spilt the heavier side ping pongs in half and weight against each otherTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。! W0 u: P) A) L9 s8 c- C2 @' L
3 weiht either ping pongs one on one then you will know which is the heavy one. |