easy, one minutes i solve the problem8 b5 a+ T( V& U( b$ m9 X+ q& O U$ a0 t
divide into half, mean 6/ 6tvb now,tvbnow,bttvb; e7 V1 M! p& A r( m! T
take the heavier 6 ping pong1 a0 `' Q2 Y; h, L5 l$ F: P- g. c, `
divide into 3/3, take the heavier 3
5 R7 F; V8 g3 `' m0 wtvb 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 |