easy, one minutes i solve the problem7 Q0 v, ?4 N7 H8 ^) t; L+ w& i
divide into half, mean 6/ 6
/ h; Q) d6 Q! P9 p/ h3 A% dtvb now,tvbnow,bttvbtake the heavier 6 ping pong' u8 U' F6 M% G* q3 H3 V
divide into 3/3, take the heavier 3
( ~. k" o; N9 Btake 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 |