easy, one minutes i solve the problem 6 v/ ?, s6 h2 s& G) o. g1 [- D4 W5.39.217.77:8898divide into half, mean 6/ 6 " Y: P8 g3 U- d6 A$ G5.39.217.77:8898take the heavier 6 ping pong5.39.217.77:88988 t: c5 J) g3 E4 C
divide into 3/3, take the heavier 3 : K- { m9 x2 X' @0 R/ etake 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