easy, one minutes i solve the problem1 z ?/ B& @8 I8 w% C; x
divide into half, mean 6/ 65.39.217.763 K% [% p- q- @/ a! ?1 ^" _
take the heavier 6 ping pong
8 X9 U2 x0 C* A: {5.39.217.76divide into 3/3, take the heavier 3
& o. m6 u* D' F5 m: ]" ftvb 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 |