easy, one minutes i solve the problem4 ?' T1 S: v2 k! q! Z
divide into half, mean 6/ 6公仔箱論壇) [6 W2 Z' l$ F
take the heavier 6 ping pong
" Y& @+ k. J) f4 ~divide into 3/3, take the heavier 3
% u8 W" U+ Y" o* e6 y2 [% Otvb 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 |