easy, one minutes i solve the problem
6 p9 Q/ _/ @* r* H# O5.39.217.76divide into half, mean 6/ 6- I, h- f! ]1 @& l3 ~! ^
take the heavier 6 ping pong
; j" z$ J% ?/ O5 c$ xdivide into 3/3, take the heavier 3! Q: K! B) f- R5 B4 Z5 ?
take 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 |