easy, one minutes i solve the problem公仔箱論壇( }3 D# d/ \4 {2 I% j
divide into half, mean 6/ 6
9 w+ ^; z3 X* qtvb now,tvbnow,bttvbtake the heavier 6 ping pong
3 Y2 a- S& ~! l, k4 ~: ]; Rdivide into 3/3, take the heavier 3
2 B" V, i; p5 V. f3 xtvb now,tvbnow,bttvbtake the the other 3 that have the equal weight, switch each to measure, the most important things is labeling the ping pong so that we can recognize |