easy, one minutes i solve the problem; d2 J# Y. [' C* {9 B
divide into half, mean 6/ 6
, N7 x! ]& B3 Ftake the heavier 6 ping pong公仔箱論壇8 k' x7 L o7 u; q% B+ ^; w( s$ _
divide into 3/3, take the heavier 3
1 B/ r5 ` Q$ c3 z6 Itvb 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 |